11,837 results match your criteria: "University of Iowa Carver College of Medicine; charles-harata@uiowa.edu.[Affiliation]"

Prenatal stress alters mouse offspring dorsal striatal development and placental function in sex-specific ways.

J Psychiatr Res

January 2025

Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, IA, 52246, USA; Iowa Neuroscience Institute, University of Iowa, Iowa City, IA, 52246, USA; Yale Child Study Center, Yale School of Medicine, New Haven, CT, 06510, USA. Electronic address:

Prenatal stress is a risk factor for neurodevelopmental disorders (NDDs), including autism spectrum disorder (ASD). However, how early stress modification of brain development contributes to this pathophysiology is poorly understood. Ventral forebrain regions such as dorsal striatum are of particular interest: dorsal striatum modulates movement and cognition, is altered in NDDs, and has a primarily GABAergic population.

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Purpose: Describe aims, methods, characteristics of donors, donor corneas and recipients, and potential impact of the Diabetes Endothelial Keratoplasty Study (DEKS).

Methods: The DEKS is a randomized, clinical trial to assess graft success and endothelial cell density (ECD) 1 year after Descemet membrane endothelial keratoplasty (DMEK) using corneas from donors with versus without diabetes in a 1:2 minimization assignment. Diabetes severity in the donor is assessed by medical history, postmortem HbA1c, and donor skin advanced glycation end-products and oxidation markers.

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Phenotypes of Pelvic Organ Prolapse.

Urogynecology (Phila)

January 2025

From the Division of Urogynecology and Reconstructive Pelvic Surgery, Department of Obstetrics and Gynecology, University of Iowa Hospitals and Clinics, Iowa City, IA.

Importance: The Pelvic Organ Prolapse Quantification (POP-Q) stages do not correlate with symptoms or characterize important prolapse subtypes.

Objectives: We hypothesize that clinically meaningful prolapse "phenotypes" utilizing POP-Q measurements can be defined. The primary aim was to define the phenotypes and their frequency.

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Aim: Pre-injury frailty has been investigated as a tool to predict outcomes of older trauma patients. Using artificial intelligence principles of machine learning, we aimed to identify a "signature" (combination of clinical variables) that could predict which older adults are at risk of fall-related hospital admission. We hypothesized that frailty, measured using the 5-item modified Frailty Index, could be utilized in combination with other factors as a predictor of admission for fall-related injuries.

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Potentiating the effect of immunotherapy in pancreatic cancer using gas-entrapping materials.

Biomaterials

January 2025

Department of Biomedical Engineering, University of Iowa, Iowa City, IA, 52242, USA; Department of Radiation Oncology, University of Iowa, Iowa City, IA, 52242, USA; Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA, 52242, USA. Electronic address:

Immune checkpoint inhibitors (ICIs) show limited success in treating pancreatic ductal adenocarcinoma (PDAC), largely due to immune evasion mechanisms, including downregulating expression of major histocompatibility complex class I (MHC-I). Our retrospective analysis demonstrated that smoking - a state of elevated CO exposure - is correlated with increased MHC I expression in pancreatic tumors. Here we tested our hypothesis that introducing exogenous CO augments the anti-cancer effects of immunotherapy.

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The Impact of Cell-Intrinsic STAT6 Protein on Donor T Cell-Mediated Graft-Versus-Tumor Effect.

Int J Mol Sci

December 2024

Department of Internal Medicine, Division of Gastroenterology and Hepatology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA.

Bone marrow transplantation (BMT) is mainly performed to restore an anti-tumor immune response, called the graft-versus-tumor (GVT) effect, against leukemia, myeloma and lymphoma. This GVT reactivity is driven by donor T cells, and it can also cause lethal graft-versus-host disease (GVHD). We previously demonstrated that the colonization of mice with helminths preserves the GVT response while suppressing GVHD.

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Measles virus (MeV) is a highly contagious respiratory virus transmitted via aerosols. To understand how MeV exits the airways of an infected host, we use unpassaged primary cultures of human airway epithelial cells (HAE). MeV typically remains cell-associated in HAE and forms foci of infection, termed infectious centers, by directly spreading cell-to-cell.

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Novel Cystic Fibrosis Ferret Model Enables Visualization of CFTR Expression Cells and Genetic CFTR Reactivation.

Hum Gene Ther

January 2025

Department of Anatomy and Cell Biology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.

Cystic fibrosis (CF) is caused by mutations in the (). While gene therapy holds promise as a cure, the cell-type-specific heterogeneity of expression in the lung presents significant challenges. Current CF ferret models closely replicate the human disease phenotype but have limitations in studying functional complementation through cell-type-specific CFTR restoration.

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Improving Real-Time Feedback During Cochlear Implantation: The Auditory Nerve Neurophonic/Cochlear Microphonic Ratio.

Ear Hear

January 2025

Department of Otorhinolaryngology and Head and Neck Surgery, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands.

Objectives: Real-time monitoring of cochlear function to predict the loss of residual hearing after cochlear implantation is now possible. Current approaches monitor the cochlear microphonic (CM) during implantation from the electrode at the tip of the implant. A drop in CM response of >30% is associated with poorer hearing outcomes.

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Sarcolemma resilience and skeletal muscle health require O-mannosylation of dystroglycan.

Skelet Muscle

January 2025

Department of Molecular Physiology and Biophysics, and Department of Neurology, Howard Hughes Medical Institute, Senator Paul D. Wellstone Muscular Dystrophy Specialized Research Center, Roy J. and Lucille A. Carver College of Medicine, The University of Iowa, Iowa City, Iowa, USA.

Background: Maintaining the connection between skeletal muscle fibers and the surrounding basement membrane is essential for muscle function. Dystroglycan (DG) serves as a basement membrane extracellular matrix (ECM) receptor in many cells, and is also expressed in the outward-facing membrane, or sarcolemma, of skeletal muscle fibers. DG is a transmembrane protein comprised of two subunits: alpha-DG (α-DG), which resides in the peripheral membrane, and beta-DG (β-DG), which spans the membrane to intracellular regions.

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This illustrates the outcomes of patients with esophageal cancer undergoing neoadjuvant concurrent chemoradiation and esophagectomy, specifically focusing on those who develop new-onset atrial fibrillation (NOAF). Statistically significant findings (p < 0.05, dark red) increased mortality and ventricular fibrillation, as well as trends of (p > 0.

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Background: Carbon fiber custom dynamic orthoses have been used to improve gait mechanics after lower limb trauma in military service members, with the goal of restoring function and improving outcomes. However, the effects of commercially available carbon fiber orthoses available to civilians on lower extremity joint kinetics and kinematics are poorly understood.

Research Question: The aim of this study was to examine the effect of two commercially available orthoses on lower extremity kinematics and kinetics in individuals with lower limb trauma.

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Objectives: Sepsis is a time-sensitive condition, and many rural emergency department (ED) sepsis patients are transferred to tertiary hospitals. The objective of this study was to determine whether longer transport times during interhospital transfer are associated with higher sepsis mortality or increased hospital length-of-stay (LOS).

Methods: A cohort of rural adult (age ≥ 18y) sepsis patients transferred between hospitals were identified in the TELEmedicine as a Virtual Intervention for Sepsis Care in Emergency Departments (TELEVISED) parent study.

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Objectives: Emergency medical services (EMS) clinicians express dissatisfaction with the quality and quantity of clinical feedback received from hospitals, which is exacerbated by the absence of standardized feedback processes. A reported lack of regular feedback impedes their ability to learn and improve care. We evaluated a newly implemented feedback tool's utilization and perceived impact on EMS clinicians and our health system.

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Importance: Identification of individuals at high risk of alcohol use disorder (AUD) and subsequent application of prevention and intervention programs has been reported to decrease the incidence of AUD. The polygenic score (PGS), which measures an individual's genetic liability to a disease, can potentially be used to evaluate AUD risk.

Objective: To assess the estimability and generalizability of the PGS, compared with family history and ADH1B, in evaluating the risk of AUD among populations of European ancestry.

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Background: People with cystic fibrosis (CF) may not expectorate sputum at young ages or after they receive CFTR modulators. While oropharyngeal swabs are commonly used to test for lower airway pathogens, it is unknown whether Staphylococcus aureus from the oropharynx matches the strain(s) infecting the lungs. Our goal was to determine whether oropharyngeal and sputum isolates of S.

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The oral mucosa undergoes daily insults, and stem cells in the epithelial basal cell layer regenerate gingiva tissue to maintain oral health. The Iroquois Homeobox 1 (IRX1) protein is expressed in the stem cell niches in human/mouse oral epithelium and mesenchyme under homeostasis. We found that Irx1+/- heterozygous (Het) mice have delayed wound closure, delayed morphological changes of regenerated epithelium, and defective keratinocyte proliferation and differentiation during wound healing.

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Importance: The Veterans Health Administration (VHA) launched the Clinical Resource Hub (CRH), a national telehealth contingency staffing program, to address primary care staffing shortages and improve veteran access to primary care. How this large-scale telehealth intervention affects quality of care is unknown.

Objective: To assess the quality of care for chronic disease management among US veterans receiving high vs low levels of CRH-delivered primary care services and whether racial and ethnic minority veterans experience outcomes similar to those of White veterans when receiving CRH-delivered care.

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Background: Unintentional falls are the greatest cause of injury-related hospitalisation in adult patients. Frailty is an important contributor to fall risk and poor outcomes in both midlife and older adult trauma patients. Despite this, the incidence of frailty remains understudied among midlife adults, and the CDC fall screening guidelines are limited to older adults.

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A clinical challenge: delayed diagnosis of autoimmune polyglandular syndrome type II in a patient with thyroid eye disease.

Orbit

January 2025

Department of Ophthalmology and Visual Sciences, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.

A 35-year-old woman with thyroid eye disease (TED) was found to have autoimmune polyglandular syndrome type II (APS-II) 1 year after developing symptoms of this rare syndrome, during which she underwent 8 emergency department visits before receiving a targeted endocrinology workup. Thyroid disease is the second most common autoimmune syndrome associated with APS-II after primary adrenal insufficiency. Identification of this syndrome is critical as it can be life-threatening if left untreated.

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Infective endocarditis (IE) is a life-threatening condition with increasing global incidence, primarily caused by , especially methicillin-resistant strains (MRSA). Biofilm formation by is a critical factor in pathogenesis, contributing to antimicrobial resistance and complicating the treatment of infections involving prosthetic valves and cardiovascular devices. Biofilms provide a protective matrix for MRSA, shielding it from antibiotics and host immune defenses, leading to persistent infections and increased complications, particularly in cases involving prosthetic materials.

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After first-line treatment failure, patients with non-muscle invasive urothelial carcinoma (NMIUC) are recommended to undergo radical cystectomy. However, those unable to pursue radical surgery or desiring bladder preservation require effective salvage therapies. Multi-agent treatment regimens are particularly useful for targeting the complex resistance mechanisms of recurrent UC.

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Introduction: Prior analysis of children with grade 3 and 4 congenital hydronephrosis demonstrated that renal medullary pyramidal thickness (PT) is predictive of subsequent pyeloplasty (area under the curve [AUC] = 0.78). The objective of this study was to further analyze the utility of sonographic measurements including PT, anteroposterior pelvic diameter (APD), and renal length with an expansion of the number of infants with hydronephrotic kidneys including grades 2, 3, and 4 hydronephrosis.

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