51,370 results match your criteria: "UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER.[Affiliation]"

Background: Hernia repairs are one of the most common general surgery procedures and an essential part of training for general surgery residents. The widespread incorporation of robotic hernia repairs warrants the development of a procedure-specific robotic curriculum to assist novice surgeons in improving technical skills.

Objective: To evaluate a robotic hernia simulation-based curriculum for general surgery residents using video review.

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Malaria remains a serious global health challenge, yet treatment and control programs are threatened by drug resistance. Dihydroorotate dehydrogenase (DHODH) was clinically validated as a target for treatment and prevention of malaria through human studies with DSM265, but currently no drugs against this target are in clinical use. We used structure-based computational tools including free energy perturbation (FEP+) to discover highly ligand efficient, potent, and selective pyrazole-based DHODH inhibitors through a scaffold hop from a pyrrole-based series.

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Cholangiocarcinoma (CCA) is the second most common primary malignancy of the hepatobiliary system and presents as a heterogeneous disease with three distinct morphological subtypes: mass-forming, periductal-infiltrating, and intraductal-growing, each characterized by distinguishing imaging features. Accurate diagnosis of CCA is challenging due to the overlap of imaging findings with a broad range of benign and malignant conditions. Therefore, it is essential for radiologists to recognize these mimickers and offer a reasonable differential diagnosis, as this has a significant impact on patient management.

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Aim: To describe the neurodevelopment and quality of life in SLC13A5 (solute carrier family 13 member 5) citrate transporter disorder (developmental and epileptic encephalopathy 25, DEE25), a rare genetic early infantile epileptic encephalopathy caused by deficiency of a sodium-citrate transporter, characterized by heavy seizure burden in the neonatal period.

Method: We analyzed longitudinal neurodevelopmental outcomes from a prospective natural history study of DEE25, using standardized assessments of Mullen Scales of Early Learning, Peabody Developmental Motor Scales, and Vineland Adaptive Behavior Scales.

Results: There was significant global impairment across the cohort, with variable quality of life and limited genotype-phenotype correlation.

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In response to the coronavirus disease 2019 (COVID-19) public health emergency (PHE), the federal government deployed policy flexibilities in food and nutrition assistance programs including the Supplemental Nutrition Assistance Program (SNAP) and Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) to meet the needs those experiencing economic hardship. Emergent literature evaluates the impact of these flexibilities on program outcomes. The objective of this study was to explore the impact of policy flexibilities deployed during the COVID-19 PHE on access, enrollment/retention, benefit utilization, and perceptions of SNAP and WIC.

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Diagnostic Journey for Tuberous Sclerosis Complex-Interviews From a Clinical Trial.

Am J Intellect Dev Disabil

January 2025

Carly Hyde, University of California, Los Angeles; Logan Shurtz, University of Texas Southwestern Medical Center; Nicole McDonald, University of California, Los Angeles; Maria Pizzano, Loyola Marymount University; Charles A. Nelson, Boston Children's Hospital and Harvard Medical School; Elizabeth A. Thiele, Massachusetts General Hospital; Connie Kasari, University of California, Los Angeles; and Shafali Jeste, Children's Hospital Los Angeles.

Tuberous sclerosis complex (TSC) is a genetic condition characterized by both medical and neuropsychiatric diagnoses that emerge across the lifespan. As part of a clinical trial, caregivers of children with TSC were interviewed about their experiences navigating medical, school, and social services. Semistructured interviews (N = 20) with caregivers of children with TSC (27-60 months) were conducted upon exit from the study.

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Background: Ritlecitinib demonstrated efficacy in a phase 2b trial of nonsegmental vitiligo.

Objective: To evaluate the efficacy and tolerability of ritlecitinib with add-on narrow-band ultraviolet B (nbUVB) phototherapy in patients with nonsegmental vitiligo.

Methods: Following a 24-week, placebo-controlled, dose-ranging period, patients received ritlecitinib 200 mg for 4 weeks then 50 mg for 20 weeks, with or without nbUVB phototherapy 2x/week.

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Background: Psoriasis is a chronic inflammatory skin disease often associated with obesity. Psoriasis therapies may be less effective in patients with obese. The purpose of this expert consensus panel is to evaluate the relationship between obesity and efficacy of psoriasis therapies, thereby optimizing patient care.

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Different effects of fatty acid oxidation on hematopoietic stem cells based on age and diet.

Cell Stem Cell

December 2024

Children's Research Institute and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA. Electronic address:

Fatty acid oxidation is of uncertain importance in most stem cells. We show by C-palmitate tracing and metabolomic analysis that hematopoietic stem/progenitor cells (HSPCs) engage in long-chain fatty acid oxidation that depends upon carnitine palmitoyltransferase 1a (CPT1a) and hydroxyacyl-CoA dehydrogenase (HADHA) enzymes. CPT1a or HADHA deficiency had little or no effect on HSPCs or hematopoiesis in young adult mice.

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Background: Frail patients have poor outcomes after emergent colon surgery. While minimally invasive surgery has shown improved outcomes in the general patient population undergoing colectomy, the benefits in frail patients are unknown.

Methods: We identified frail patients who underwent urgent or emergent colon resections from 2017 to 2021 in the National Surgical Quality Improvement Program database.

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Background: Immune checkpoint inhibitors (ICIs) are an important therapeutic pillar in metastatic urothelial carcinoma (mUC). The occurrence of immune-related adverse events (irAEs) appears to be associated with improved outcomes in observational studies. However, these associations are likely affected by immortal time bias and do not represent causal effects.

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Emerging clinical evidence of a dual role for Ang-2 and VEGF-A blockade with faricimab in retinal diseases.

Graefes Arch Clin Exp Ophthalmol

December 2024

Doheny Eye Institute, University of California, Los Angeles, 150 N. Orange Grove Blvd, Suite 232, Pasadena, CA, USA.

Anti-vascular endothelial growth factor (VEGF) therapies have transformed the treatment of retinal diseases. However, VEGF signaling is only one component of the complex, multifactorial pathophysiology of retinal diseases, and many patients have residual disease activity despite ongoing anti-VEGF treatment. The angiopoietin/tyrosine kinase with immunoglobulin and epidermal growth factor receptor-2 (Ang/Tie2) signaling pathway is critical to endothelial cell homeostasis, survival, integrity, and vascular stability.

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Background: Patients with cutaneous lupus erythematosus (CLE) can present with one or multiple different subtypes of CLE. There is limited understanding of the prevalence and associated risk factors for having multiple CLE subtype diagnoses.

Objective: This study characterized the frequency and risk factors for having multiple CLE subtypes.

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Background: There is practice heterogeneity in the use, type, and duration of prophylactic antiseizure medications (ASM) in patients hospitalized with acute nontraumatic intracerebral hemorrhage (ICH).

Methods: We conducted a systematic review and meta-analysis assessing ASM primary prophylaxis in adults hospitalized with acute nontraumatic ICH. The following population, intervention, comparison, and outcome (PICO) questions were assessed: (1) Should ASM versus no ASM be used in patients with acute ICH with no history of clinical or electrographic seizures? (2) If an ASM is used, should levetiracetam (LEV) or phenytoin/fosphenytoin (PHT/fPHT) be preferentially used? and (3) If an ASM is used, should a long (> 7 days) versus short (≤ 7 days) duration of prophylaxis be used? The main outcomes assessed were early seizure (≤ 14 days), late seizures (> 14 days), adverse events, mortality, and functional and cognitive outcomes.

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Formative verbal feedback during live surgery is essential for adjusting trainee behavior and accelerating skill acquisition. Despite its importance, understanding optimal feedback is challenging due to the difficulty of capturing and categorizing feedback at scale. We propose a Human-AI Collaborative Refinement Process that uses unsupervised machine learning (Topic Modeling) with human refinement to discover feedback categories from surgical transcripts.

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Objective: With robotic technology's rapid growth and integration, an urgent need to bridge the educational gap in thoracic surgical training has emerged. This document, a result of consensus among a group of experts in the practice and training of robotic surgery from the Society of Thoracic Surgeons (STS), aims to provide a framework for a standardized national robotic curriculum for thoracic surgery trainees.

Methods: The STS Task Force on Robotic Thoracic Surgery and Workforce on E-learning and Educational Innovation assembled an expert group with the input of the Thoracic Surgery Director's Association (TSDA).

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Progression-Free Survival Prediction for Locally Advanced Cervical Cancer After Chemoradiotherapy With MRI-based Radiomics.

Clin Oncol (R Coll Radiol)

November 2024

Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA; Advanced Imaging and Informatics for Radiation Therapy Laboratory and Medical Artificial Intelligence and Automation Laboratory, University of Texas Southwestern Medical Center, Dallas, TX, USA. Electronic address:

Article Synopsis
  • A study focuses on predicting progression-free survival (PFS) in patients with locally advanced cervical cancer (LACC) after chemoradiotherapy using a radiomics-based model based on MR T2-weighted imaging.
  • The study involved analyzing MR images from 105 LACC patients, utilizing Cox proportional hazard modeling and cross-validation methods to create a combined model that incorporates both radiomics and clinical variables.
  • Results showed that the radiomics feature significantly outperformed models using only clinical variables, enhancing the ability to differentiate between high- and low-risk patients for disease progression, indicating the potential of MR T2WI radiomics as a valuable imaging biomarker in personalized treatment strategies.
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Objective: Traumatic spinal injury (TSI) involves diverse etiologies, posing different risks among patient populations worldwide. Discrepancies in TSI treatment and outcomes between high-income countries and low- and middle-income countries highlight the critical necessity for tailored management approaches for this global challenge. This study delves into the presentation, management, and outcomes of TSI in Africa.

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Article Synopsis
  • Statin therapy during coil embolization for intracranial aneurysms (IAs) may lower the rates of aneurysm recurrence and the need for retreatment.
  • A post hoc analysis of data from the Hydrogel Endovascular Aneurysm Treatment Trial showed that patients on statins had a recurrence rate of 3.8%, compared to 10.7% in those not on statins.
  • Statin use was particularly effective in patients with unruptured aneurysms, significantly reducing recurrence compared to nonstatin users, while having no measurable benefit for ruptured aneurysms.
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Cancer mutations rewire the RNA methylation specificity of METTL3-METTL14.

Sci Adv

December 2024

Department of Biochemistry, Department of Biophysics, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.

Chemical modification of RNAs is important for posttranscriptional gene regulation. The METTL3-METTL14 complex generates most -methyladenosine (mA) modifications in messenger RNAs (mRNAs), and dysregulated methyltransferase expression has been linked to cancers. Here we show that a changed sequence context for mA can promote oncogenesis.

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Brain neurons utilize the primary cilium as a privileged compartment to detect and respond to extracellular ligands such as Sonic hedgehog (SHH). However, cilia in cerebellar granule cell (GC) neurons disassemble during differentiation through ultrastructurally unique intermediates, a process we refer to as cilia deconstruction. In addition, mature neurons do not reciliate despite having docked centrioles.

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The formation of functional epithelial tubules is critical for the development and maintenance of many organ systems. While the mechanisms of tubule formation by epithelial cells are well studied, the process of tubule anastomosis-where tubules connect to form a continuous network-remains poorly understood. In this study, we utilized single-cell RNA sequencing to analyze embryonic mouse kidney tubules undergoing anastomosis.

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Background: Neighborhood characteristics serve as risk factors for metabolic syndrome (MetS). However, the intermediary factors linking this relationship remain understudied. Thus, we investigated the sex-specific mediating role of C-reactive protein, physical activity (PA), and perceived stress in the associations of perceived neighborhood social environment (PNSE) with MetS severity among Black adults.

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