11,080 results match your criteria: "UT Southwestern Medical Center; Yichen.Ding@utdallas.edu.[Affiliation]"

Background: The immune heterogeneity of biliary atresia (BA) presents a challenge for development of prognostic biomarkers. This study aimed to identify early immune signatures associated with biliary drainage after Kasai Portoenterostomy (KPE).

Methods: Serum samples, liver slides, and clinical data were obtained from patients enrolled in the NIDDK-supported Childhood Liver Disease Research Network.

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γ-Glutamyl carboxylase (GGCX) is the sole identified enzyme that uses vitamin K (VK) as a cofactor in humans. This protein catalyses the oxidation of VK hydroquinone to convert specific glutamate residues to γ-carboxyglutamate residues in VK-dependent proteins (VDPs), which are involved in various essential biological processes and diseases. However, the working mechanism of GGCX remains unclear.

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Pancreatic ductal adenocarcinoma (PDAC) driven by the mutation presents a formidable health challenge because of limited treatment options. MRTX1133 is a highly selective and first-in-class KRAS-G12D inhibitor under clinical development. Here, we report that the advanced glycosylation end product-specific receptor (AGER) plays a key role in mediating MRTX1133 resistance in PDAC cells.

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Objective: Lowering lipid to reach guideline-indicated goals significantly reduces cardiovascular outcomes in very-high-risk (VHR) patients with atherosclerotic cardiovascular disease (ASCVD) and type 2 diabetes (DM2). How well VHR patients currently achieve these goals in community practice is unknown.

Methods: VHR patients with ASCVD and DM2 were identified across 14 US healthcare systems using electronic health records between 1/1/2021-12/31/2022.

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Background & Objectives: Differentiation of histologic subtypes of appendiceal mucoceles may prove to be difficult on computed tomography (CT). The main objective of this study was to identify the CT features of mucocele of the appendix and correlate the imaging findings with histopathology in inflammatory, benign, and malignant neoplastic lesions, and whether these entities can be accurately differentiated on CT imaging.

Materials And Methods: CT scans of 31 patients with diagnosis of appendiceal mucocele were retrospectively reviewed and compared with histopathology.

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Background: Atypical ductal hyperplasia (ADH) is a benign proliferative breast lesion. Surgical excision of ADH is often recommended to rule out underlying malignant disease.

Objective: The aim of this study was to evaluate the trends in ADH upgrade rates over time and identify the impact of magnetic resonance imaging (MRI) use on upgrade rates.

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Aims: The current American Joint Committee on Cancer (AJCC) staging manual and the College of American Pathologists (CAP) colorectal carcinoma (CRC) protocol specify use of a four-tiered grading system (i.e. grades 1-4; well-differentiated-undifferentiated) for CRC, based on percentage of gland formation.

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Somatic activating mutations in KRAS can cause complex lymphatic anomalies (CLAs). However, the specific processes that drive KRAS-mediated CLAs have yet to be fully elucidated. Here, we used single-cell RNA sequencing to construct an atlas of normal and KrasG12D-malformed lymphatic vessels.

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Fluid secretion and luminal pressure control lateral branching morphogenesis in the embryonic avian lung.

Dev Biol

January 2025

Department of Bioengineering, University of Texas at Dallas, Richardson, TX; Department of Biomedical Engineering, UT Southwestern Medical Center, Dallas, TX. Electronic address:

During lung development, the embryonic airway originates as a wishbone-shaped epithelial tube, which undergoes a series of branching events to build the bronchial tree. This process depends crucially on cell proliferation and is thought to involve distinct branching modes: lateral branching, wherein daughter branches emerge along the length of a parent branch, and bifurcations, wherein the tip of a parent branch splits to form two new daughter branches. The developing airway is fluid-filled, and previous studies have shown that altered luminal pressure can influence rates of branching morphogenesis.

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Polymyxins are last-resort antimicrobial peptides administered clinically against multi-drug resistant bacteria, specifically in the case of Gram-negative species. However, an increasing number of these pathogens employ a defense strategy that involves a relay of enzymes encoded by the pmrE (ugd) loci and the arnBCDTEF operon. The pathway modifies the lipid-A component of the outer membrane (OM) lipopolysaccharide (LPS) by adding a 4-amino-4-deoxy-l-arabinose (L-Ara4N) headgroup, which renders polymyxins ineffective.

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The Role of Imaging in Pulmonary Vascular Disease: The Clinician's Perspective.

Radiol Clin North Am

March 2025

Department of Medicine, UT Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-8558, USA; Department of Pediatrics, UT Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-8558, USA. Electronic address:

Pulmonary vascular diseases, particularly when accompanied by pulmonary hypertension, are complex disorders often requiring multimodal imaging for diagnosis and monitoring. Echocardiography is the primary screening tool for pulmonary hypertension, while cardiac MR imaging (CMR) is used for more detailed characterization and risk stratification in right ventricular failure. Chest computed tomography (CT) is used to detect vascular anomalies and parenchymal lung diseases.

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High definition transcranial direct current stimulation as an intervention for cognitive deficits in Alzheimer's dementia: A randomized controlled trial.

J Prev Alzheimers Dis

February 2025

Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Neurology, University of Texas Southwestern Medical Center, Dallas, TX, USA; School of Behavioral and Brain Sciences, University of Texas at Dallas, Dallas, TX, USA.

Background: Recent disease-modifying treatments for Alzheimer's disease show promise to slow cognitive decline, but show no efficacy towards reducing symptoms already manifested.

Objectives: To investigate the efficacy of a novel noninvasive brain stimulation technique in modulating cognitive functioning in Alzheimer's dementia (AD).

Design: Pilot, randomized, double-blind, parallel, sham-controlled study SETTING: Clinical research site at UT Southwestern Medical Center PARTICIPANTS: Twenty-five participants with clinical diagnoses of AD were enrolled from cognition specialty clinics.

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This pilot study explores the feasibility of large-scale non-fasting triglyceride level screening at blood donation centers. Hypertriglyceridemia is a risk factor for cardiovascular disease and acute pancreatitis. Triglyceride levels were measured in 10,176 blood donors at Carter BloodCare North Texas and found 39.

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A Call for a Neoadjuvant Kidney Cancer Consortium: Lessons Learned from Other Cancer Types.

Eur Urol

January 2025

Department of Surgery, University of Cambridge, Cambridge, UK; Cancer Research UK Cambridge Centre, Cambridge Biomedical Campus, Cambridge, UK.

Neoadjuvant systemic treatment strategies have improved outcomes in several solid tumour types. This success has not yet been replicated in renal cell carcinoma (RCC). A consensus and international collaboration are urgently needed for the development of adaptive perioperative immunotherapy strategies for patients with RCC at high risk of recurrence.

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Association of an HIV-Prediction Model with Uptake of Pre-Exposure Prophylaxis (PrEP).

Appl Clin Inform

January 2025

Department of Internal Medicine, Division of Infectious Diseases and Geographic Medicine, The University of Texas Southwestern Medical Center, Dallas, United States.

Background: Global efforts aimed at ending human immunodeficiency virus (HIV) incidence have adapted and evolved since the turn of the century. The utilization of machine learning incorporated into an electronic health record (EHR) can be refined into prediction models that identify when an individual is at greater HIV infection risk. This can create a novel and innovative approach to identifying patients eligible for preventative therapy.

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Background: The use of Electronic Health Records (EHRs) in research demands robust, interoperable systems. By linking biorepositories to EHR algorithms, researchers can efficiently identify cases and controls for large observational studies (e.g.

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An open chat between Prof Asifa Akhtar and Klaudia Jaczynska.

FEBS Open Bio

January 2025

FEBS Open Bio Editorial Office, Cambridge, UK.

To mark the International Day of Women and Girls in Science 2025, we invited Prof Asifa Akhtar, Vice President of the Max Planck Society's Biology and Medicine section, Director at the Max Planck Institute of Immunobiology and Epigenetics in Freiburg, Honorary Professor at the Albert Ludwigs University and recipient of the 2025 FEBS | EMBO Women in Science Award to meet and chat with Klaudia Jaczynska, final year PhD student at Jose Rizo's laboratory in UT Southwestern Medical Center, Dallas, and 2024 FEBS Open Bio Article Prize winner. We invited them to talk about challenges limiting equal representation in science, technology, engineering and mathematics, initiatives to foster supportive environments as a research institute and the importance of highlighting diverse examples of success.

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We previously reported that ferroptosis interplays with apoptosis through the integration of two independent pathways: the endoplasmic reticulum (ER) stress signaling pathway and the mitochondria-dependent apoptotic signaling pathway. In this study, we investigated a potential gatekeeper molecule, Mcl-1, between the two signal transduction pathways. Morphology studies and cell death analyses confirmed that a combination treatment of ferroptotic agent erastin (ERA) and apoptotic agent TRAIL (tumor necrosis factor-related apoptosis-inducing ligand) synergistically enhances TRAIL-induced apoptosis in human pancreatic adenocarcinoma BxPC3 and human colorectal carcinoma HCT116 cells.

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Gut dysbiosis is linked to mortality and the development of graft-versus-host disease (GVHD) after hematopoietic stem cell transplantation (HSCT), but the impact of cutaneous dysbiosis remains unexplored. We performed a pilot observational study and obtained retroauricular and forearm skin swabs from 12 adult patients prior to conditioning chemotherapy/radiation, and at 1-week, 1-month and 3-months after allogeneic HSCT, and performed shotgun metagenomic sequencing. The cutaneous microbiome among HSCT patients was enriched for gram-negative bacteria such as E coli and Pseudomonas, fungi, and viruses.

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There has been both a national and global emphasis within the past 3 years to promote diversity, equity, inclusion (DEI), and cultural respect in healthcare and academia. One discipline and healthcare arena where this has been evident is the psychology field. Indeed, there has been rampant and widespread adoption and advancement of DEI and cultural respect across most of psychology.

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A significant proportion of patients who sustain a concussion/mild traumatic brain injury endorse persisting, lingering symptoms. The symptoms associated with concussion are nonspecific, and many other medical conditions present with similar symptoms. Medical conditions that overlap symptomatically with concussion include anxiety, depression, insomnia, chronic pain, chronic fatigue, fibromyalgia, and cervical strain injuries.

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Introduction: Low grade appendiceal mucinous neoplasms (LAMN) are indolent tumors that lack invasive potential but may present as pseudomyxoma peritonei. Cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) significantly improves both overall and recurrence free survival. While systemic chemotherapy is generally considered ineffective for LAMN, little literature is available to support this notion.

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