40,603 results match your criteria: "Virginia Commonwealth University;[Affiliation]"

There is a complex interplay between the gut microbes, liver, and central nervous system, a gut-liver-brain axis, where the brain impacts intestinal and hepatic function while the gut and liver can impact cognition and mental status. Dysregulation of this axis can be seen in numerous diseases. Hepatic encephalopathy, a consequence of cirrhosis, is perhaps the best studied perturbation of this system.

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Background: Pancreatic cancer is highly aggressive and has a low survival rate primarily due to late-stage diagnosis and the lack of effective early detection methods. We introduce here a novel, noninvasive urinary extracellular vesicle miRNA-based assay for the detection of pancreatic cancer from early to late stages.

Methods: From September 2019 to July 2023, Urine samples were collected from patients with pancreatic cancer (n = 153) from five distinct sites (Hokuto Hospital, Kawasaki Medical School Hospital, National Cancer Center Hospital, Kagoshima University Hospital, and Kumagaya General Hospital) and non-cancer participants (n = 309) from two separate sites (Hokuto Hospital and Omiya City Clinic).

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The advent of single-cell RNA sequencing (scRNA-seq) has greatly enhanced our ability to explore cellular heterogeneity with high resolution. Identifying subpopulations of cells and their associated molecular markers is crucial in understanding their distinct roles in tissues. To address the challenges in marker gene selection, we introduce CORTADO, a computational framework based on hill-climbing optimization for the efficient discovery of cell-type-specific markers.

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Buprenorphine and postpartum contraception utilization among people with opioid use disorder: a multi-state analysis.

Addict Sci Clin Pract

January 2025

Departments of Family and Community Medicine and Health and Clinical Outcomes Research, Saint Louis University School of Medicine, Saint Louis, MO, USA.

Background: The postpartum period provides an opportunity for birthing people with opioid use disorder (OUD) to consider their future reproductive health goals. However, the relationship between the use of medication for opioid use disorder (MOUD) and contraception utilization is not well understood. We used multistate administrative claims data to compare contraception utilization rates among postpartum people with OUD initiating buprenorphine (BUP) versus no medication (psychosocial services receipt without MOUD (PSY)) in the United States (US).

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Intranasal drug administration offers a promising strategy for delivering combination antiretroviral therapy (cART) directly to the central nervous system to treat NeuroAIDS, leveraging the nose-to-brain route to bypass the blood-brain barrier. However, challenges such as enzymatic degradation in the nasal mucosa, low permeability, and mucociliary clearance within the nasal cavity must first be addressed to make this route feasible. To overcome these barriers, this study developed solid lipid nanoparticles (SLNs) with varying PEGylation levels (0 %, 5 %, 10 %, and 15 % w/w of PEGylated lipid), co-encapsulated with Elvitegravir (EVG) and Atazanavir (ATZ) as an integrase and protease inhibitor, respectively.

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A Systematic Literature Review on School-Based Speech-Language Pathology Collaboration Research.

Lang Speech Hear Serv Sch

January 2025

Department of Curriculum, Instruction, and Special Education, University of Virginia, Charlottesville.

Purpose: School-based teams are called to be collaborative in order to appropriately and effectively serve students. Speech-language pathologists play crucial roles on school-based teams. This systematic review sought to synthesize existing empirical evidence on collaborative perceptions and experiences in research that included school-based speech-language pathologists (SLPs).

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Traumatic brain injury (TBI) and subsequent post-traumatic epilepsy (PTE) often impair daily activities and mental health (MH), which contribute to long-term TBI-related disability. PTE also affects driving capacity, which impacts functional independence, community participation, and satisfaction with life (SWL). However, studies evaluating the collective impact of PTE on multidimensional outcomes are lacking.

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Child maltreatment is a major public and global health issue with well-documented intergenerational patterns. Social-emotional development, which is detrimentally impacted by child maltreatment, has been associated with parenting behaviors and implicated as a mechanism of intergenerational transmission of child maltreatment. This scoping review sought to synthesize information on the social-emotional skills that contribute to or protect against intergenerational maltreatment.

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Revision Triceps Reconstruction With Achilles Bone Block Allograft Augmentation: A Novel Inlay Technique.

Tech Hand Up Extrem Surg

January 2025

Department of Orthopaedics, Virginia Commonwealth University Health System, Central Virginia Veteran Affairs Health Care System, Richmond, VA.

Managing rerupture of the triceps brachii tendon after surgical repair is challenging due to poor tissue quality, retraction, and adhesions. This clinical scenario often requires augmentation with native tissue or tendon allografts. Traditional techniques include V-Y advancement, reinforced triceps advancement with double row or suture bridge fixation, and allograft tendon augmentation.

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Superatoms as Superior Catalysts: ZrO versus Pd.

Small

January 2025

Department of Physics, Virginia Commonwealth University, Richmond, VA, 23284-2000, USA.

Single-atom catalysts are the focus of studies for over a decade due to their enhanced reactivity at smaller sizes. However, they have limitations as they offer only one active site, which may not be sufficient for reactions requiring the co-adsorption of multiple reactants. Additionally, atoms can migrate on a substrate and coalesce, resulting in decreased reactivity.

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Preserved but Un-Sustained Responses to Bids for Dyadic Engagement in School-Age Children with Autism.

J Autism Dev Disord

January 2025

Center for Child Health, Behavior and Development, Seattle Children's Research Institute, 1920 Terry Ave CURE-3, Seattle, WA, 98101, USA.

Purpose: Dynamic eye-tracking paradigms are an engaging and increasingly used method to study social attention in autism. While prior research has focused primarily on younger populations, there is a need for developmentally appropriate tasks for older children.

Methods: This study introduces a novel eye-tracking task designed to assess school-aged children's attention to speakers involved in conversation.

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The complement system and neutrophils constitute the two main pillars of the host innate immune defense against infection by bacterial pathogens. Here, we identify T-Mac, a novel virulence factor of the periodontal pathogen Treponema denticola that allows bacteria to evade both defense systems. We show that T-Mac is expressed as a pre-protein that is cleaved into two functional units.

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Janus LAAM-loaded electrospun fibrous buccal films for treating opioid use disorder.

Biomaterials

December 2024

Department of Pharmaceutics, Virginia Commonwealth University, Richmond, VA, 23298, USA; Department of Ophthalmology, Virginia Commonwealth University, Richmond, VA, 23298, USA; Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, 23298, USA; Center for Pharmaceutical Engineering, Center for Drug Discovery, Department of Pediatrics, and Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298, USA. Electronic address:

The opioid crisis has claimed approximately one million lives in the United States since 1999, underscoring a significant public health concern. This surge in opioid use disorder (OUD) fatalities necessitates improved therapeutic options. Current OUD therapies often require daily clinical visits, leading to poor patient compliance and high costs to the health systems.

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The BMT CTN 1703 phase III trial confirmed that graft-versus-host disease (GVHD) prophylaxis with post-transplantation cyclophosphamide (PTCy), tacrolimus (Tac), and mycophenolate mofetil (MMF) results in superior GVHD-free, relapse-free survival (GRFS) compared with Tac/methotrexate (MTX) prophylaxis. This companion study assesses the effect of these regimens on patient-reported outcomes (PROs). Using the Lee Chronic GVHD Symptom Score and PROMIS subscales (physical function, GI symptoms, social role satisfaction) as primary end points and hemorrhagic cystitis symptoms and Lee subscales as secondary end points, responses from English and Spanish speakers were analyzed at baseline and days 100, 180, and 365 after transplant.

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Background: Religiousness has been consistently linked to positive health outcomes and flourishing, yet the underlying mechanisms are complex and not well-understood. The forgiveness and relational spirituality model offers a framework to explore the moderated mediation among religious commitment, health, and forgiveness by God. Understanding these relationships among university students and community residents in Trinidad and Tobago can provide valuable insights into the role of religiousness in promoting wellbeing.

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Education Research: The MANET Project: Museum Art in Neurology Education Training.

Neurol Educ

December 2024

From the Department of Neurology (T.G., P.A.), Boston Medical Center, MA; Georgia Museum of Art (D.O.), Athens; Harvard Art Museums (C.M.), Cambridge, MA; and Department of Neurology (S.B.), Virginia Commonwealth University, Richmond.

Background And Objectives: Multiple studies have shown that visual arts training has improved observational and communication skills and empathy among medical students and resident physicians. The benefits of such training for neurology residents remain scarce. This project aims to introduce neurology residents to the world of visual arts, improve their observational skills, foster their empathic skills, and provide them with a unique space for self-expression.

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Correct measurement results from in vitro diagnostic (IVD) medical devices (MD) are crucial for optimal patient care. The performance of IVD-MDs is often assessed through method comparison studies. Such studies can be compromised by the influence of various factors.

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Ocular and neurological manifestations of the FDXR-related disorder.

J AAPOS

December 2024

Department of Ophthalmology, Virginia Commonwealth University School of Medicine, Richmond, Virginia; Department of Human and Molecular Genetics, Virginia Commonwealth University School of Medicine, Richmond, Virginia; Department of Pediatrics, Virginia Commonwealth University School of Medicine, Children's Hospital of Richmond at Virginia Commonwealth University, Richmond, Virginia. Electronic address:

The FDXR-related disorder is caused by pathogenic variants in the FDXR gene. Including our case, a total of 47 patients have been reported. The most common genotypes are the homozygous c.

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Acquired torticollis due to an ocular surface foreign body.

J AAPOS

December 2024

Department of Ophthalmology, Boston Children's Hospital, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts; Picower Institute for Learning and Memory, Massachusetts Institute of Technology, Cambridge, Massachusetts. Electronic address:

Ocular torticollis is traditionally attributed to eye misalignment, nystagmus, ptosis, or refractive error. We present 3 pediatric cases of acquired torticollis caused by a foreign body beneath the upper eyelid. The head posturing presumably developed to minimize contact of the foreign body with the corneal surface and mitigate ocular discomfort.

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Objectives: A recent coronavirus-related factory shutdown led to a global shortage of iodinated contrast. The authors evaluated how the contrast shortage impacted percutaneous coronary interventions (PCI).

Methods: Using a statewide database incorporating CathPCI registry data from 19 hospitals, the authors evaluated 2 time periods: pre-shortage (May 1, 2021 - April 30, 2022) and during the shortage (May 1, 2022 - October 31, 2022).

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T helper 2 cell-directed immunotherapy eliminates precancerous skin lesions.

J Clin Invest

January 2025

Center for Cancer Immunology and Cutaneous Biology Research Center, Krantz Family Center for Cancer Research and Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, USA.

The continuous rise in skin cancer incidence highlights an imperative for improved skin cancer prevention. Topical calcipotriol-plus-5-fluorouracil (calcipotriol-plus-5-FU) immunotherapy effectively eliminates precancerous skin lesions and prevents squamous cell carcinoma (SCC) in patients. However, its mechanism of action remains unclear.

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