430 results match your criteria: "University of North Carolina at Chapel Hill: Chapel Hill[Affiliation]"
Alzheimers Dement (N Y)
December 2024
Introduction: The professional caregiver workforce (nursing assistants and personal care aides) is critical to quality of care and quality of life in nursing home (NH) and assisted living (AL) settings. The work is highly stressful, so improving responses to stress in this workforce could contribute to satisfaction and retention. This research developed a coping measure appropriate for the diverse professional caregiver workforce.
View Article and Find Full Text PDFAlzheimers Dement (N Y)
December 2024
Introduction: Professional caregivers (nursing assistants and personal care aides) in nursing homes (NH) and assisted living (AL) provide the majority of long-term residential care for persons with Alzheimer's disease and related dementias. Their work is stressful, but until recently, no measures were available to assess stress in this workforce. Using the new Long-Term Care Cope (LTC COPE) scale, this study evaluates the relationship of coping with staff demographic characteristics and outcomes; the findings can be used to develop and evaluate interventions to improve staff well-being.
View Article and Find Full Text PDFExploration (Beijing)
December 2024
CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology Beijing China.
Over the last two decades, lipid nanoparticles (LNPs) have evolved as an effective biocompatible and biodegradable RNA delivery platform in the fields of nanomedicine, biotechnology, and drug delivery. They are novel bionanomaterials that can be used to encapsulate a wide range of biomolecules, such as mRNA, as demonstrated by the current successes of COVID-19 mRNA vaccines. Therefore, it is important to provide a perspective on LNPs for RNA delivery, which further offers useful guidance for researchers who want to work in the RNA-based LNP field.
View Article and Find Full Text PDFBackground: Obesity is a chronic, relapsing, progressive disease of excess adiposity that increases the risk of dying from at least 16 types of cancer. The prevalence of obesity has increased more rapidly in cancer survivors compared with the general population. Tailored weight management strategies are needed to improve prognosis and health outcomes in the growing population of cancer survivors.
View Article and Find Full Text PDFBackground: Patients with decompensated cirrhosis have a higher risk of hospitalization, ICU admission, and death from COVID-19. The impact of demographics on these outcomes remains uncertain.
Methods: The SECURE-Liver and COVID-Hep databases were utilized to evaluate disparities in COVID-19 outcomes.
Bioeng Transl Med
September 2024
Division of Pharmacoengineering and Molecular Pharmaceutics, Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy University of North Carolina at Chapel Hill Chapel Hill North Carolina USA.
Triple-negative breast cancer (TNBC) is notoriously difficult to treat due to the lack of targetable receptors and sometimes poor response to chemotherapy. The transforming growth factor beta (TGFβ) family of proteins and their receptors (TGFRs) are highly expressed in TNBC and implicated in chemotherapy-induced cancer stemness. Here, we evaluated combination treatments using experimental TGFR inhibitors (TGFβi), SB525334 (SB), and LY2109761 (LY) with paclitaxel (PTX) chemotherapy.
View Article and Find Full Text PDFBioeng Transl Med
November 2024
Division of Pharmacoengineering and Molecular Pharmaceutics, UNC Eshelman School of Pharmacy The University of North Carolina at Chapel Hill Chapel Hill North Carolina USA.
Glioblastoma (GBM) is the most common primary malignant brain tumor diagnosed in adults, carrying with it an extremely poor prognosis and limited options for effective treatment. Various cell therapies have emerged as promising candidates for GBM treatment but fail in the clinic due to poor tumor trafficking, poor transplantation efficiency, and high systemic toxicity. In this study, we design, characterize, and test a 3D-printed cell delivery platform that can enhance the survival of therapeutic cells implanted in the GBM resection cavity.
View Article and Find Full Text PDFObjective: Adaptive interventions may improve the potency and scalability of behavioral weight loss interventions, but the treatments-or treatment combinations-that should be offered are unknown. A two-stage pilot sequential multiple assignment randomized trial was used to test the timing and dose of human support added to a core digital weight loss program.
Methods: In stage 1, 99 adults with overweight/obesity were randomized at baseline to a kick-off with or without additional human support.
RSC Adv
October 2024
State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University Shanghai 200438 P. R. China
We report here on dual shape transformations of the same thermo-responsive hybrid hydrogel sheet under irradiation of a laser with two different wavelengths (808 nm and 450 nm). By etching the silver nanoprisms in the sheet to silver nanodiscs by using chloride ions (Cl), two areas with distinct light extinction properties are integrated in a single sheet. The conversion of photon energy to thermal energy in local areas by the silver nanoprisms or nanodiscs under laser irradiation with an appropriate wavelength heats up the sheet locally and causes a local volumetric shrinkage, and hence a volumetric mismatch in different areas in the sheet.
View Article and Find Full Text PDFRSC Pharm
October 2024
Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill Chapel Hill North Carolina USA
Rapamycin (rapa), an immunosuppressive medication, has demonstrated considerable effectiveness in reducing organ transplant rejection and treating select autoimmune diseases. However, the standard oral administration of rapa results in poor bioavailability, broad biodistribution, and harmful off-target effects, necessitating improved drug delivery formulations. Polymeric microparticles (MPs) are one such solution and have demonstrated promise in pre-clinical studies to improve the therapeutic efficacy of rapa.
View Article and Find Full Text PDFAlthough it is well understood that the graph of the free energy of unfolding (Δ) of a globular protein with temperature approximates to a negative parabola, there is as yet no link between this global (G) Δ () function and the individual structural elements-residue type and the non-covalent forces between groups-contributing to it. As such, there is little understanding of how each structural element contributes to the globally assessed changes of enthalpy (Δ ), entropy (Δ ), and heat capacity (Δ ) of unfolding calculated from the Δ () function. To address this situation, we consider here an alternative approach to examining fold stability.
View Article and Find Full Text PDFThe gut microbiome plays critical roles in human homeostasis, disease progression, and pharmacological efficacy through diverse metabolic pathways. Gut bacterial β-glucuronidase (GUS) enzymes reverse host phase 2 metabolism, in turn releasing active hormones and drugs that can be reabsorbed into systemic circulation to affect homeostasis and promote toxic side effects. The FMN-binding and loop 1 gut microbial GUS proteins have been shown to drive drug and toxin reactivation.
View Article and Find Full Text PDFBiologists increasingly rely on computer code to collect and analyze their data, reinforcing the importance of published code for transparency, reproducibility, training, and a basis for further work. Here, we conduct a literature review estimating temporal trends in code sharing in ecology and evolution publications since 2010, and test for an influence of code sharing on citation rate. We find that code is rarely published (only 6% of papers), with little improvement over time.
View Article and Find Full Text PDFAm J Trop Med Hyg
August 2024
Department of Pediatrics, Division of Infectious Diseases University of North Carolina at Chapel Hill Chapel Hill, North Carolina
RSC Med Chem
August 2024
Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan P.O. Box 130 Amman 11733 Jordan.
Phosphodiesterase 5 (PDE5), an enzyme responsible for catalyzing the degradation of cyclic guanosine monophosphate (cGMP), has been linked to the development of cancer. PDE5 inhibitors (PDE5i), such as sildenafil (Viagra) and tadalafil (Cialis), work by blocking the action of PDE5 and are used primarily as treatments for erectile dysfunction and arterial hypertension. Some studies suggested a potential link between PDE5i and increased cancer risk, while other studies showed preferable antitumor effects.
View Article and Find Full Text PDFSleep
October 2024
Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill Chapel Hill, NC, USA.
Background: The Hispanic/Latino population experiences socioeconomic disadvantages across the lifespan. Yet, little is known about the role of these disadvantages in cardiovascular health (CVH). We assessed the association of lifecourse socioeconomic position (SEP) with ideal CVH and change in Hispanic/Latino adults.
View Article and Find Full Text PDFSoluble angiotensin-converting enzyme 2 (ACE2) can act as a decoy molecule that neutralizes severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) by blocking spike (S) proteins on virions from binding ACE2 on host cells. Based on structural insights of ACE2 and S proteins, we designed a "muco-trapping" ACE2-Fc conjugate, termed ACE2-(GS)-Fc, comprised of the extracellular segment of ACE2 (lacking the C-terminal collectrin domain) that is linked to mucin-binding IgG1-Fc via an extended glycine-serine flexible linker. ACE2-(GS)-Fc exhibits substantially greater binding affinity and neutralization potency than conventional full length ACE2-Fc decoys or similar truncated ACE2-Fc decoys without flexible linkers, possessing picomolar binding affinity and strong neutralization potency against pseudovirus and live virus.
View Article and Find Full Text PDFJ Am Heart Assoc
August 2024
Department of Medicine, Division of Cardiology University of North Carolina at Chapel Hill Chapel Hill NC USA.
Background: Wearables are increasingly used by patients with atrial fibrillation (AF) for symptom monitoring and health management, but their impact on patient health care use and psychological well-being is not well understood.
Methods And Results: In this retrospective, propensity-matched study of patients with AF, survey and electronic health record data were merged to compare AF-specific health care use (outpatient/inpatient visits, rhythm-related testing, and procedures) and informal health care use (telephone calls and patient portal messages) over a 9-month period between wearable users and nonusers. We also examined the effects of wearable cardiac monitoring features (eg, heart rate alerts, irregular rhythm notification, and ECG) on patient behavior and well-being.
Ecol Evol
July 2024
Colegio de Ciencias Biológicas y Ambientales, Laboratorio de Biotecnología Vegetal Universidad San Francisco de Quito (USFQ) Quito Ecuador.
J Am Heart Assoc
June 2024
Division of Pharmacotherapy and Experimental Therapeutics, Eshelman School of Pharmacy University of North Carolina at Chapel Hill Chapel Hill NC USA.
Background: Cytochrome P450 2C19 (CYP2C19) intermediate and poor metabolizer patients exhibit diminished clopidogrel clinical effectiveness after percutaneous coronary intervention (PCI). However, outcome studies to date have lacked racial diversity. Thus, the impact of genotype on cardiovascular outcomes in patients treated with clopidogrel who identify as Black or African American remains unclear.
View Article and Find Full Text PDFJ Am Heart Assoc
June 2024
Department of Epidemiology and Biostatistics, College of Human Medicine Michigan State University East Lansing MI.
Background: Olfactory impairment is common in older adults and may be associated with adverse cardiovascular health; however, empirical evidence is sparse. We examined olfaction in relation to the risk of coronary heart disease (CHD), stroke, and congestive heart failure (CHF).
Methods And Results: This study included 2537 older adults (aged 75.