Digital Commons Network^™

Spatiotemporal Histogenesis Of The Developing Human Cerebellum Reveals Dynamic Layering Of Bergmann Glia, Guanyi He, Simon Du, Henry Tan, Sri Yellampally, Anders W Erickson, Virginia Fernandez, Ferechte Encha-Razavi, Kimberley A Phillips, Christine Haberler, Nicole Amberg, Victor Borrell, Paul A Northcott, Michael D Taylor, Kathleen J Millen, Parthiv Haldipur

Faculty, Staff and Students Publications

Bergmann glia (BG) are a specialized glial population essential for cerebellar development, yet their developmental timeline and molecular identity in the human cerebellum remain poorly understood. Here, we combined detailed histopathological analysis with spatial transcriptomics and single-nucleus RNA sequencing to generate a developmental atlas of human cerebellar BG. Histology revealed that BG emerge around 11 post-conception weeks (PCW), initially serving as a scaffold for Purkinje cells (PCs) migrating into the PC layer of the cerebellar cortex. Following the establishment of a multilayered PC arrangement, BG form a distinct parallel layer separated from the PCs by the lamina dissecans (LD), with …

Tumor Microenvironment Transcriptional Activity Enables Robust Stratification Of Chemotherapy Response In Triple-Negative Breast Cancer, Yaoyi Dai, Xiaoxi Pan, Shuai Guo, Shuangxi Ji, Shaolong Cao, Matthew D Montierth, Yujie Jiang, Jeffrey T Chang, Leming Shi, Shabnam Shalapour, Gloria V Echeverria, Lucy Yates, Johan Staaf, Bora Lim, Yinyin Yuan, Wenyi Wang

Faculty, Staff and Student Publications

Triple-negative breast cancer (TNBC) exhibits heterogeneous treatment responses, yet molecular subtypes based on predefined biological pathways show limited prognostic value. We introduce tumor-specific total mRNA expression (TmS), a pathway-agnostic deconvolution metric derived from matched RNA/DNA sequencing, as a robust stratification tool. Analyzing 575 TNBC patients across Western and East Asian populations, TmS outperforms established subtypes in predicting chemotherapy outcomes, stratifying patients into high TmS with favorable prognosis and low TmS with poor prognosis. Stromal enrichment with immune exclusion emerges as a universal feature of chemotherapy-resistant low-TmS tumors across all cohorts. Population-specific features distinguish Asian cohorts: high-TmS tumors exhibit cell cycle-driven …

Efficacy Of Etvax, A Vaccine Against Enterotoxigenic Escherichia Coli-Positive Diarrhoea In Gambian Children: A Double-Blind, Randomised, Placebo-Controlled, Phase 2b Trial, M Jahangir Hossain, Fatou Secka, Lady C Sanyang, Raifu Taiwo, Emmanuel C Okoh, Olubunmi A Olubiyi, Mbemba Drammeh, Emmanuel U Richard, Ahmed D Balami, Mama Drammeh, Samba Juma Jallow, Bakary Sonko, Paticia Ezedimbu-Michael, Jacinta Obiaduo, Ousman Secka, Joanna Kaim, Björn Sjöstrand, Agneta Lissmats, Nils Carlin, Umberto D'Alessandro, Ann-Mari Svennerholm, Thomas F Wierzba

Faculty and Staff Publications

Background: Enterotoxigenic Escherichia coli (ETEC) causes 75 million diarrhoea episodes with up to 42 000 deaths annually in children. To prevent ETEC in children, we aimed to evaluate the safety, immunogenicity, and efficacy of ETVAX, an oral, inactivated, whole-cell ETEC vaccine with toxoid and double-mutant heat-labile toxin adjuvant.

Methods: In this phase 2b, double-blind, placebo-controlled trial, Gambian children aged 6-18 months were recruited from four enrolment centres and block-randomised (1:1) via a computer-generated sequence, stratified by enrolment centres, to receive ETVAX or placebo on days 1, 15, and 90. Parents, staff, investigators assessing outcomes, and investigators analysing the data were …

Sting-Induced Blood-Brain Barrier Opening Combined With Radiotherapy Potentiates Antitumor Response In A High-Grade Glioma Model, Shashwat Tripathi, Hinda Najem, Lisa Hurley, Ruochen Du, Crismita Dmello, Heba Ali, Kathleen Mccortney, Karl J Habashy, Peng Zhang, Craig M Horbinski, Lara Leoni, Ryan J Avery, Rimas V Lukas, Timothy L Sita, David R Raleigh, Sean Sachdev, Roger Stupp, Maciej S Lesniak, David M Ashley, Daniele Procissi, Michael A Curran, Irina Balyasnikova, Amy B Heimberger

Faculty, Staff and Student Publications

Radiation therapy (RT) is the standard of care for glioblastoma but is not curative. Triggering the cGAS/stimulator of interferon genes (STING) pathway with potent agonists, such as 8803, exerts activity across high-grade glioma preclinical models. To determine if the combination of 8803 with RT warrants consideration in the up-front treatment setting and to clarify the underlying mechanisms of therapeutic activity, C57BL/6J mice harboring intracerebral CT-2A or QPP8v gliomas were treated with RT, intratumoral 8803, or both. The treatment with the combination resulted in 80% long-term survival in the CT-2A model but not in the radiation-resistant QPP8v model. This therapeutic effect …

Mutant Kras In Brain Endothelial Cells Promotes Vascular Inflammation And Impairs Vascular Integrity In Brain Arteriovenous Malformation, Jung-Eun Park, Bridger H Freeman, Hyejin Park, Sehee Kim, Adrian E Bafor, Ohnmar Myint, Song Gao, Zhen Xu, Jakob Körbelin, Jaroslaw Aronowski, Peng Roc Chen, Eunhee Kim, Eun S Park

Faculty, Staff and Student Publications

Somatic KRAS (KRASG12V) mutation in endothelial cells (EC) induces brain arteriovenous malformation (bAVM) that could lead to vascular instability and ultimately bleeding. However, the causes of bAVM instability remain unclear. Here we demonstrate that KRASG12V expressing cultured ECs (KRAS-G12V-EC) have increased expression of pro-inflammatory mediators and reduced expression of blood-brain-barrier (BBB) junction constituents. The conditioned medium from KRAS-G12V-EC can activate BV2-microglia (BV2-MG) and conditioned media from this primed BV2-MG can compromise the expression of EC-junction constituents when added to wild-type ECs. In an in vitro BBB model, KRAS-G12V-EC form a dysfunctional EC barrier that is further disrupted, leading to lower …

Automated Quantification Of Movement Qualities In The Human Upper Extremity After Stroke Using A Wearable Robot., Yoon No Gregory Hong, Kyoungsoon Kim, Sheng Li, Marcia K O'Malley, Ashish D Deshpande, Jinsook Roh

Faculty, Staff and Student Publications

Background: Stroke is a leading cause of long-term adult disability, with approximately 80% of survivors experiencing upper extremity (UE) motor impairments. Conventional tools like the Fugl-Meyer Assessment (FMA) are widely used but limited by ordinal scales and subjective visual observation. While wearable robotics offer high-resolution data, their clinical translation is hindered by a lack of standardized protocols and limited interpretability for clinical decision-making.

Objective: This study aimed to develop an objective, standardized, and clinically interpretable method to quantify UE motor qualities by integrating wearable robotic technology with traditional clinical assessment tasks.

Methods: Ten healthy individuals and ten stroke survivors performed …

Strspy2.0: Unlocking The Potential Of Long Reads For Forensic Dna Profiling, Courtney L Hall, Rupesh K Kesharwani, Katherine E Mcbroom Henson, Bupe Kapema, Nicole R Phillips, Fritz J Sedlazeck, Roxanne R Zascavage

Faculty, Staff and Students Publications

Forensic human identification relies on length-based differences in short tandem repeats (STRs) across autosomal and Y chromosomes, which require separate reactions and provide limited resolution. While next-generation sequencing offers greater discriminatory power, most platforms are expensive and restricted to traditional lab settings. Nanopore sequencing has the potential to change this with the real-time, portable MinION sequencer. However, forensic-specific tools that generate STR profiles compatible with established length-based databases are lacking. To address this, we developed STRspy2.0, which simultaneously profiles autosomal and Y-STRs using nanopore reads. STRspy2.0 produced accurate profiles for 54 multiplexed control libraries and 41 mock casework samples (blood, …

Author Correction: Intracranial Directed Connectivity Links Subregions Of The Prefrontal Cortex To Major Depression, John Myers, Jiayang Xiao, Raissa K Mathura, Ben Shofty, Victoria Gates, Joshua Adkinson, Anusha B Allawala, Adrish Anand, Ron Gadot, Ricardo Najera, Hernan G Rey, Sanjay J Mathew, Kelly Bijanki, Garrett Banks, Andrew Watrous, Eleonora Bartoli, Sarah R Heilbronner, Nicole Provenza, Wayne K Goodman, Nader Pouratian, Benjamin Y Hayden, Sameer A Sheth

Faculty, Staff and Students Publications

No abstract provided.

Optimizing Electrode Placement And Information Capacity For Local Field Potentials In Cortex, Jace A Willis, Christopher E Wright, Ruoqian Zhu, Yilan Ruan, Joshua Stallings, Amada M Abrego, Takfarinas Medani, Promit Moitra, Arjun Ramakrishnan, Charles E Schroeder, Anand A Joshi, Nitin Tandon, Richard M Leahy, John C Mosher, John P Seymour

Faculty, Staff and Student Publications

Recent neurosurgery advancements include improved stereotactic targeting and increased density and specificity of electrophysiological evaluation. This study introduces a subject-specific, in silico modeling tool for optimizing electrode placement and maximizing coverage with a variety of devices. The basis for optimization is the Shannon-Hartley information capacity of field potentials derived from dipolar sources. The approach integrates subject-specific MRI data with finite element modeling (FEM) used to simulate the sensitivity of subdural and intracortical devices. Sensitivity maps, or lead fields, from these models enable the comparison of different electrode placements, contact sizes, contact configurations, and substrate properties, which are often overlooked factors. …

Clinical, Genetic, And Familial Features Of Pot1 Tumor Predisposition Syndrome, Courtney D Dinardo, Jennifer Croden, Hiam M Abdel-Salam, Tapan Kadia, Matteo Molica, Alexandre Bazinet, Prithviraj Bose, Abhishek Maiti, Fadi Haddad, Jan Burger, Hagop Kantarjian, William Wierda, Nitin Jain, Alessandra Ferrajoli

Faculty, Staff and Student Publications

Background: Protection of telomere 1 (POT1) tumor predisposition syndrome (POT1-TPD) is a hereditary leukemia syndrome that is identified in ∼5% of patients with chronic lymphocytic leukemia (CLL) and is characterized by a predisposition to other cancers, including gliomas, melanomas, and angiosarcomas. This study reports clinical and genetic characteristics of a large cohort of individuals with POT1-TPD.

Materials and methods: Individuals with pathogenic/likely pathogenic germline POT1 variants referred to the Hereditary Hematologic Malignancy Clinic at The University of Texas MD Anderson Cancer Center were included. Individuals with variants of uncertain significance were included if found to have telomeres >90th percentile of …

Control Arm Overperformance In Phase 3 Oncology Clinical Trials, Ansel P Nalin, Pavlos Msaouel, Adam J Grippin, Ramez Kouzy, Joseph Abi Jaoude, Timothy A Lin, Avital M Miller, Noah S Meimoun, Ethan B Ludmir, Alexander D Sherry

Faculty, Staff and Student Publications

Background: In randomized clinical trials (RCTs), anticipating control arm outcomes is important for power calculations and enrollment goals. Unexpected overperformance of the control arm can underpower RCTs. The objective of this study was to estimate the prevalence of control arm overperformance in phase 3 oncology RCTs.

Methods: The authors conducted a meta-epidemiological study of two-arm, superiority-design, phase 3 oncology RCTs. They reviewed articles/publications and protocols for power calculations, justification, and outcomes. Control arm performance was measured as the ratio of observed control arm outcomes relative to pretrial estimates, and overperformance was defined as a 10% improvement.

Results: In total, 385 …

Antidepressant Use In Older Age Bipolar Disorder (Oabd): Results From The Gage-Bd International Consortium, Christina Rigas, Paola Lavin, P J Chen, Susana G Torres-Platas, Chien-Lin Su, Lisa T Eyler, Andrew T Olagunju, Antonio L Teixeira, Annemieke Dols, Martin Alda, Osvaldo P Almeida, Kursat Altinbas, Vicent Balanzá-Martínez, Izabela G Barbosa, Hilary P Blumberg, Farren B S Briggs, Cynthia V Calkin, Brent P Forester, Orestes V Forlenza, Tomas Hajek, Barthomeus C M Haarman, Esther Jimenez, Beny Lafer, Benoit Mulsant, Stephen O Oluwaniyi, Regan Patrick, Joaquim Radua, Kaylee Sarna, Sigfried Schouws, Christian Simhandl, Jair C Soares, Ashley N Sutherland, Shang-Ying Tsai, Eduard Vieta, Luca M Villa, Nicole Fiorelli, Paula Villela Nunes, Joy M Yala, Martha Sajatovic, Soham Rej, All Gage-Bd Investigators

Faculty, Staff and Student Publications

Background: Antidepressants are still commonly prescribed in bipolar disorders, despite ongoing controversy of the potential risk of inducing hypomania/mania. There is limited knowledge about the characteristics of antidepressant use in older age bipolar disorder (OABD; age ≥50) in the current literature.

Aim: To describe antidepressant use, sociodemographic and clinical correlates of a global sample of OABD individuals.

Methods: The Global Aging and Geriatric Experiments in Bipolar Disorder (GAGE-BD) consortium provided cross-sectional international data on OABD individuals (n = 746) and younger-age bipolar disorder (YABD, age < 50 years; n = 692) regarding antidepressant use. Multivariate logistic regression was employed to assess the association between AD use with demographic and clinical variables.

Results: Of 1252 participants, 33.1 % of OABD individuals and 38.1 % of YABD individuals …

Epigenetic Age Acceleration In Young Adults With Congenital Heart Disease, Parag N Jain, Beryl C Zhuang, Joanne Whitehead, Julia L Macisaac, Kristy Dever, Mallory Gahm, Peter Ermis, Thomas W Mcdade, Michael S Kobor, Paul A Checchia

Faculty, Staff and Students Publications

Background: Adults with congenital heart disease (ACHD) having undergone palliative surgery experience chronic stress due to altered physiology and repeated surgical interventions since infancy.

Objectives: To investigate whether ACHD, who had experienced chronic physiological stress from their underlying condition and early-life cardiac surgeries, was associated with epigenetic age acceleration (EAA) and other DNA methylation (DNAm)-based biomarkers, and to assess the potential contribution of derived inflammatory markers to EAA.

Methods: A case-control study comparing ACHD patients and healthy adults. Whole blood DNAm profile was used to estimate DNAm-based blood cell type proportions, multiple epigenetic age measures, and interleukin-6 (IL-6) and C-reactive …

Charting A New Era To Modernize United States Infant Formula Regulation, Douglas G Burrin, Amy B Hair, Sharon M Donovan

Children’s Nutrition Research Center Staff Publications

No abstract provided.

Common Serum Biomarkers And Combination Ratios In The Diagnosis Of Periprosthetic Joint Infection Following Total Hip Arthroplasty, Jason M Dayan, Don H Le, Anzar Sarfraz, Theodor Di Pauli Von Treuheim, Farouk Khury, Sallie Yassin, Vinay K Aggarwal, Ran Schwarzkopf, Alan J Dayan

Faculty, Staff and Student Publications

Accurate preoperative diagnosis of periprosthetic joint infection (PJI) is difficult, complicating distinction between septic and aseptic failures. This study assessed the value of common serum biomarkers and three calculated ratios-albumin-globulin ratio (AGR), C-reactive protein-albumin ratio (CAR), and C-reactive protein-AGR ratio (CAGR)-in diagnosing PJI after primary total hip arthroplasty (THA). We retrospectively reviewed patients undergoing revision THA for PJI or aseptic failure from 2011 to 2021 at a single institution. Inclusion required reported serum white blood cell count (WBC), C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), albumin (Alb), and total protein (TP). Diagnostic performance was evaluated using areas under the curve …

Erythropoiesis-Inosine Metabolic Axis Failure Underlying Retinal Neurodegeneration In Glaucoma: Novel Diagnoses And Therapies, Yuyu Chou, Wuping Liu, Yanxiu Li, Changhan Chen, Cheng Luo, Shiping Shen, Piaoyu Dai, Lemeng Feng, Wenhao Xiao, Yiyan Wang, Juncheng Wang, Linlin Wan, Zhiyu Yang, Tingting Xie, Yujin Zhang, Rodney E Kellems, Weitao Song, Xiaobo Xia, Yang Xia

Faculty, Staff and Student Publications

Glaucoma, long considered an ocular-limited, age-dependent and hypoxia-driven neurodegeneration, is here reframed as a systemic erythroid-inosine axis failure that originates in the bone marrow yet culminates in retinal ganglion cell (RGC) death. By mining UK Biobank datasets (n = 127,028) and validating our findings in an independent clinical cohort (n = 178), we reveal that glaucoma is preceded by dyserythropoiesis and a compensatory, AMPK-driven metabolic rewiring of mature erythrocytes that hypercatabolizes inosine to enhance oxygen unloading. This adaptation collapses when accelerated erythrocyte inosine metabolism drains systemic pools, starving high-energy demand hematopoietic progenitors, driving retinal microenvironment hypoxia and accelerating RGC loss. …

First Detection Of Xylazine In Texas Wastewater And Its Association With Fentanyl Use, Katherine M Joseph, Xuan Qin, Dhvani Parikh, Feng Li, John Balliew, Kristina D Mena, Fuqing Wu

Faculty, Staff and Students Publications

Xylazine is a veterinary sedative increasingly found in the U.S. illicit drug supply and is a growing public health concern due to its association with overdose events. To investigate its spatial distribution and relationship with fentanyl use, we analyzed 124 wastewater samples from four treatment plants serving the City of El Paso, Texas, over 13 months (June 2023 to July 2024) using liquid chromatography tandem mass spectrometry. Xylazine detections varied across sewersheds, with detection rates of 29.0%, 12.9%, 9.7%, and 0% and peak loads of 110±40 μg/day/1000 people. Norfentanyl (a primary fentanyl metabolite) was detected in all samples (100%), reaching …

Rmzyme: Regulations Of Rna-Modifying Enzymes In Humans, Ruihan Luo, Haixia Xu, Qingbo Zhou, Shanli Ding, Min Qiang, Jianguo Wen, Pora Kim, Xiaojuan Yang, Yunshi Cai, Kunlin Xie, Jiang Zhu, Yungang Xu, Tian Lan, Xiaobo Zhou, Hong Wu

Faculty, Staff and Student Publications

RNA modifications represent a dynamic layer of gene expression regulation, RNA stability, and translation with profound implications for cellular function and disease. However, the critical regulation and functions of RNA-modifying proteins (RMPs) remain poorly understood. Here, we present a large-scale characterization of RMPs through 378 multiomics datasets encompassing genomics, bulk and single-cell transcriptomics, epitranscriptomics, proteomics, and posttranslational modifications (PTMs) across 63 human tissues. Our analysis of experimental perturbations of RMPs revealed dynamic differential modification peaks and expressed genes. We applied nonnegative matrix factorization to annotate RMP-mediated cell types in single-cell transcriptomes. Functional annotations in acute myeloid leukemia (AML) revealed RMPs …

Targeting Oxalate Production By Combining Enzyme Inhibition And Proteolysis Activation: A Novel Therapeutic Approach For Primary Hyperoxaluria Type 1, Fabio Arias, Sumati Rohilla, Yudibeth Sixto-López, Koral S E Richard, Sandeep Das, Sumit K Anand, Pilar Maria Luque-Navarro, Guillermo Bañuelos-Sanchez, Juan Luis Pacheco-García, Reethika Gade, M Peyton Mckinney, Dhananjay Kumar, Jemiah Maxie, W Rylan Corr, Nilesh Pandey, Harpreet Kaur, Jibin Ding, Lin Tan, Elisha Scott, Hyung Nam, Eyal Gottlieb, A Wayne Orr, Nirav Dhanesha, Arif Yurdagul, Angel L Pey, Francisco Franco-Montalbán, José A Gómez Vidal, Oren Rom, Mónica Díaz-Gavilán

Faculty, Staff and Student Publications

Primary hyperoxaluria type 1 (PH1) is a rare genetic disorder caused by hepatic oxalate overproduction due to alanine-glyoxylate aminotransferase (AGXT) deficiency. Therapeutic strategies targeting glycolate oxidase (GO) and lactate dehydrogenase A (LDHA), key enzymes in glyoxylate metabolism, have shown promise in reducing oxalate burden. However, recently approved siRNA therapies remain limited by high cost, unfavorable pharmacokinetics, and limited global accessibility. We report the development of compound 2, a dual GO/LDHA inhibitor (K i = 390 and 40 nM, respectively) that also promotes hydrophobic tag-mediated autophagic degradation of LDHA. Its efficacy was evaluated in Agxt –/– mice, both in primary …

Primary Tumor Size And Tumor-Vessel Interface Following Capecitabine And Temozolomide For Pancreatic Neuroendocrine Tumor, Jin Guo, Kever A Lewis, Laura Prakash, Priya Bhosale, Ajaykumar Morani, Matthew H G Katz, Ching-Wei D Tzeng, Naruhiko Ikoma, Rebecca Snyder, Michael P Kim, Chandrikha Chandrasekharan, Arvind Dasari, James C Yao, Jeffrey E Lee, Jessica E Maxwell, Daniel M Halperin

Faculty, Staff and Student Publications

Capecitabine/temozolomide (CAPTEM) is an established regimen for patients with metastatic pancreatic neuroendocrine tumors (PanNET) that is being increasingly used for tumor volume reduction in patients with borderline anatomically resectable disease. We sought to understand the response of the primary tumor, defined as changes in the tumor–vascular interface (TVI). This is a retrospective, single-institution study of patients with locally advanced or metastatic PanNET treated with CAPTEM between 2010 and 2020. RECISTv1.1 measurements and TVI assessments of the primary tumor were performed on pre- and post-therapy images. Patients with locally advanced or metastatic PanNET at presentation (n = 47) were included. …

Tumor-Immune-Neural Circuit Disrupts Energy Homeostasis In Cancer Cachexia, Xiuhui Shi, Alex X Arreola, Zhijun Zhou, Jingxuan Yang, Mingyang Liu, Yang Cai, Yu Ren, Hao Yuan, Qun Chen, Xinjie Chen, Xinyu Yang, Yimei Meng, Jingyi Wang, Wenyi Luo, Michael C Rudolph, Rohan Varshney, Kar-Ming Fung, Chao Xu, Wei R Chen, Michael S Bronze, Lei Zheng, Yi-Ping Li, Courtney W Houchen, Yuqing Zhang, Min Li

Faculty, Staff and Student Publications

Cancer-induced cachexia and anorexia are debilitating complications across many cancers, yet effective treatments remain limited due to a poor understanding of the underlying mechanisms. Here, we identify an uncharacterized tumor-immune-neural circuit driving these syndromes, centered on growth and differentiation factor 15 (GDF15). Using genetically engineered mouse models, we find that loss of GDF15 protects against appetite loss, muscle wasting, and fat loss in pancreatic, lung, and skin cancers. Single-cell RNA sequencing reveals macrophages as a major source of GDF15, induced by tumor-derived colony-stimulating factor 1 (CSF1). GDF15 acts via the central nervous system to enhance β-adrenergic signaling in the tumor …

Weight Loss Patterns And Clinical Outcomes Of Glp1 Receptor Agonists In Breast Cancer Survivors, Jasmine S Sukumar, Akshara Singareeka Raghavendra, Sarah Pasyar, Roland L Bassett, Debu Tripathy, Carlos H Barcenas, Karen M Basen-Engquist, Banu K Arun

Faculty, Staff and Student Publications

Use of glucagon-like peptide-1 receptor agonists (GLP1-RA) for weight loss is increasing; implications in breast cancer (BC) survivors remain unclear.This retrospective cohort study evaluated treatment patterns, weight loss, and outcomes in BC survivors at an academic institution receiving GLP1-RA. We evaluated patients with non-metastatic (ductal carcinoma in situ (DCIS), stage 1-3) BC who received GLP1-RA (2005 - 2024). Linear regression models estimated associations between weight change and clinical factors. After excluding DCIS, propensity score matching (1:2) was used to match patients who received GLP1-RA with patients who did not, based on confounding covariates. Kaplan-Meier estimates and log-rank tests compared disease-free …

Serial False Lumen Patency Evaluation Of A Type B Dissection Represented With Malperfusion Following Medical Management, S Taha Zaidi, Quang Le, Firas Mussa, Akiko Tanaka, S Keisin Wang, Arash Keyhani, Kourosh Keyhani

Faculty, Staff and Student Publications

False lumen evolution in type B aortic dissection, particularly with medical management and anticoagulation, remains incompletely understood. We report a 55-year-old man on apixaban for pulmonary embolism with a subacute zone 3-10L TBAD without malperfusion. He was managed medically initially and represented twice over 2 months with back pain and acute right lower extremity ischemia. Serial imaging demonstrated dynamic remodeling with progression from partial to near-complete thrombosis to full reperfusion with true lumen compression. Urgent endovascular repair was performed successfully. This case illustrates the unpredictable course of medically managed TBAD and need for judicious use of anticoagulation.

Small Patients, Big Gaps: Why Adult Crrt Timing Evidence Does Not Translate To Children, Katja M Gist, Dana Y Fuhrman, Ayse Akcan-Arikan

Faculty, Staff and Students Publications

No abstract provided.

“My Heart Was In My Stomach”: Texas-Based Obstetricians’ And Gynecologists’ Experiences Post Anti-Abortion Legislation, Chelsey Kanipe, Precious Chiamaka Anunobi, Anupria D Davenport, Sheryl A Mccurdy, Marie A Brault

Faculty, Staff and Student Publications

Background

The purpose of this study is to investigate the downstream effects of anti-abortion legislation on the practice of obstetrics and gynecology in urban Texas.

Methods

We conducted semi-structured interviews until saturation with eleven obstetricians/gynecologists (OBGYNs) to explore the effects of Texas’s abortion laws. Analysis consisted of inductive and deductive approaches.

Results

We identified three main themes regarding the downstream effects of Texas abortion laws: the conflicting role of colleagues as a support system and a source of frustration and distrust for OBGYNs, the lowered standard of care for those with a desired pregnancy, and concerns that anti-abortion legislation will …

Leveraging Ancestral Recombination Graphs For Scalable Mixed-Model Analysis Of Complex Traits, Jiazheng Zhu, Georgios Kalantzis, Ali Pazokitoroudi, Árni Freyr Gunnarsson, Hrushikesh Loya, Han Chen, Sriram Sankararaman, Pier Francesco Palamara

Faculty, Staff and Student Publications

Recent algorithmic advances have enabled the inference of genome-wide ancestral recombination graphs (ARGs) from large genomic cohorts, providing detailed models of genealogical relatedness along the genome. These inferred ARGs can complement genotype imputation by capturing the effects of unobserved variants, but their use in large-scale linear mixed-model analyses has been computationally prohibitive. Here, we develop methods that leverage the ARG to perform genotype-matrix multiplications in sublinear time and implement scalable randomized algorithms for mixed-model analyses. We introduce ARG-RHE, a randomized Haseman-Elston approach for estimating narrow-sense heritability and performing region-based association testing using ARGs, enabling parallel analysis of multiple quantitative traits. …

Correction: The Hsp90-Myc-Cdk9 Network Drives Therapeutic Resistance In Mantle Cell Lymphoma, Fangfang Yan, Vivian Jiang, Alexa Jordan, Yuxuan Che, Yang Liu, Qingsong Cai, Yu Xue, Yijing Li, Joseph Mcintosh, Zhihong Chen, Jovanny Vargas, Lei Nie, Yixin Yao, Heng-Huan Lee, Wei Wang, Johnnelson R Bigcal, Maria Badillo, Jitendra Meena, Christopher Flowers, Jia Zhou, Zhongming Zhao, Lukas M Simon, Michael Wang

Faculty, Staff and Student Publications

No abstract provided.

Identifying Alzheimer's Disease Progression Subphenotypes Via A Graph-Based Framework Using Electronic Health Records, Yu Huang, Jie Xu, Zhengkang Fan, Yu Hu, Xing He, Aokun Chen, Yuxi Liu, Rui Yin, Jingchuan Guo, Steven T Dekosky, Michael Jaffee, Manqi Zhou, Chang Su, Fei Wang, Yi Guo, Jiang Bian

Faculty, Staff and Student Publications

Understanding the heterogeneity of neurodegeneration in Alzheimer's disease (AD) and identifying distinct progression pathways is critical for improving diagnosis, treatment, prognosis, and prevention. Motivated by this need, this study aimed to identify disease progression subphenotypes among patients with mild cognitive impairment (MCI) and AD using electronic health records (EHRs). We developed a novel approach that combines a graph neural network (GNN)-based framework with time series clustering to characterize progression subphenotypes from MCI to AD. We applied the proposed framework to a real-world cohort of 2,525 patients (61.66% female; mean age 76 years), of whom 64.83% were Non-Hispanic White, 16.48% Non-Hispanic …

Third-Party Effects On Intergroup Trust: The Role Of Punishment/Compensation And Group Regulatory Focus, Xiaowei Geng, Jie Cui, Jie Wang, Feng Zhang, Wei Wang

Faculty, Staff and Student Publications

Intergroup trust refers to a collective prediction and belief among members of one group regarding those of another in intergroup interactions. It plays an important role in avoiding intergroup conflicts, and thereby sustaining social development. This study was designed to investigate the effects of third-party punishment and compensation, as well as group regulatory focus, on intergroup trust. The findings revealed that, at both individual and group levels, prevention-focused groups exhibited higher levels of intergroup trust than promotion-focused groups under third-party compensation conditions. In contrast, under the third-party punishment conditions, promotion-focused groups displayed greater trust than prevention-focused groups, although this difference …

Agent-Based Modeling Of Cellular Dynamics In Adoptive Cell Therapy, Yujia Wang, Stefano Casarin, May Daher, Vakul Mohanty, Merve Dede, Mayra Shanley, Eleonora Dondossola, Ludovica La Posta, Rafet Başar, Katayoun Rezvani, Ken Chen

Faculty, Staff and Student Publications

Adoptive cell therapies (ACT) leverage tumor-immune interactions to cure cancer. Despite promising phase I/II clinical trials of chimeric-antigen-receptor natural killer (CAR-NK) cell therapies, molecular mechanisms and cellular properties required to achieve clinical benefits in broad cancer spectra remain underexplored. While in vitro and in vivo experiments are essential, they are expensive, laborious, and limited to targeted investigations. Here, we present ABMACT (Agent-Based Model for Adoptive Cell Therapy), an in silico approach employing agent-based models (ABM) to simulate the continuous course and dynamics of an evolving tumor-immune ecosystem, consisting of heterogeneous "virtual cells" created based on knowledge and omics data observed …