5,144,036 results match your criteria: "United States of America; The University of Tennessee Graduate School of Medicine[Affiliation]"

Reduced autoimmunity associated with deletion of host CD73.

Immunohorizons

January 2025

Department of Pediatrics, Division of Gastroenterology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States.

CD73 is ubiquitously expressed and regulates critical functions across multiple organ systems. The sequential actions of CD39 and CD73 accomplish the conversion of adenosine triphosphate to adenosine and shift the adenosine triphosphate-driven proinflammatory immune cell milieu toward an anti-inflammatory state. This immunological switch is a major mechanism by which regulatory T (Treg) cells control inflammation.

View Article and Find Full Text PDF

Influenza virus infects millions each year, contributing greatly to human morbidity and mortality. Upon viral infection, pathogen-associated molecular patterns activate pattern recognition receptors on host cells, triggering an immune response. The CD209 protein family, homologs of DC-SIGN (dendritic cell-specific intercellular adhesion molecule 3-grabbing nonintegrin), is thought to modulate immune responses to viruses.

View Article and Find Full Text PDF

Prion protein modulation of virus-specific T cell differentiation and function during acute viral infection.

Immunohorizons

January 2025

Center for Virus Research, Chao Family Comprehensive Cancer Center, Department of Molecular Biology and Biochemistry, Charlie Dunlop School of Biological Sciences, University of California, Irvine, Irvine, CA, United States.

The differentiation and functionality of virus-specific T cells during acute viral infections are crucial for establishing long-term protective immunity. While numerous molecular regulators impacting T cell responses have been uncovered, the role of cellular prion proteins (PrPc) remains underexplored. Here, we investigated the impact of PrPc deficiency on the differentiation and function of virus-specific T cells using the lymphocytic choriomeningitis virus (LCMV) Armstrong acute infection model.

View Article and Find Full Text PDF

Dysregulated differentiation of naïve CD4+ T cells into T helper 17 (Th17) cells is likely a key factor predisposing to many autoimmune diseases. Therefore, better understanding how Th17 differentiation is regulated is essential to identify novel therapeutic targets and strategies to identify individuals at high risk of developing autoimmunity. Here, we extend our prior work using chemical inhibitors to provide mechanistic insight into a novel regulator of Th17 differentiation, the kinase dual-specificity tyrosine phosphorylation-regulated kinase 1A (DYRK1A).

View Article and Find Full Text PDF

Give the grant-writing monkeys another banana.

Immunohorizons

January 2025

Department of Microbiology/Immunology, Indiana University School of Medicine, Indianapolis, Indiana, United States.

View Article and Find Full Text PDF

Biomimetic 3D Prototyping of Hierarchically Porous Multilayered Membranes for Enhanced Oil-Water Filtration.

ACS Appl Mater Interfaces

January 2025

Associate Professor of Mechanical Engineering, College of Engineering, University of Georgia (UGA), 302 E. Campus Rd., Athens 30602, United States.

This study introduces a biomimetic approach to 3D printing multilayered hierarchical porous membranes (MHMs) using Direct Ink Writing (DIW) technology. Fabricated through a fast layer-by-layer printing process with varying concentrations of pore-forming agents, the produced MHMs mimic the hierarchical pore structure and filtration capabilities of natural soil systems. As a result, the 3D-printed MHMs achieved an impressive oil rejection rate of 99.

View Article and Find Full Text PDF

Purpose: Innate immune cell-based therapies have shown promising antitumor activity against solid and hematologic malignancies. AFM24, a bispecific innate cell engager, binds CD16A on natural killer (NK) cells/macrophages and EGFR on tumor cells, redirecting antitumor activity towards tumors. The safety and tolerability of AFM24 was evaluated in this Phase 1/2a dose escalation/dose expansion study in patients with recurrent or persistent, advanced solid tumors known to express EGFR.

View Article and Find Full Text PDF

Background: We evaluated the non-cyclic dinucleotide stimulator of interferon genes agonist MK-2118 ± pembrolizumab in patients with advanced solid tumors or lymphomas.

Methods: This first-in-human study (NCT03249792) enrolled patients with refractory, advanced solid tumors or lymphomas. Patients received intratumoral (IT) MK-2118 100-20,000 µg (arm 1), IT MK-2118 900-15,000 µg plus intravenous (IV) pembrolizumab 200 mg every 3 weeks (Q3W; arm 2), or subcutaneous (SC) MK-2118 5000-150,000 µg plus IV pembrolizumab 200 mg Q3W (arm 4); arm 3 (visceral injection of MK-2118) was not pursued.

View Article and Find Full Text PDF

Sperm-associated antigen 9 (SPAG9) is a member of cancer-testis antigen, having characteristics of a scaffold protein, which is involved in the c-Jun N-terminal kinase JNK signaling pathway, suggesting its key involvement in different physiological processes, such as survival, apoptosis, tumorigenesis, and cell proliferation. We identified two families (A and B) having multisystem features like coarse facial features, albinism, cataracts, skeletal abnormalities, and developmental delay. Whole genome sequencing (WGS) in families A and B revealed a homozygous frameshift variant (c.

View Article and Find Full Text PDF

In critical approaches to the study of whiteness, white ignorance refers to systematic and intentional ways of (not) knowing that function to perpetuate racism. The current critical qualitative analysis examines how white ignorance surfaces in the racial identity narratives of white adolescents (N = 69, M = 15.91, SD = 0.

View Article and Find Full Text PDF

A proteogenomic analysis of the adiposity colorectal cancer relationship identifies GREM1 as a probable mediator.

Int J Epidemiol

December 2024

International Agency for Research on Cancer (IARC/WHO), Nutrition and Metabolism Branch, Lyon, France.

Background: Adiposity is an established risk factor for colorectal cancer (CRC). The pathways underlying this relationship, and specifically the role of circulating proteins, are unclear.

Methods: Utilizing two-sample univariable Mendelian randomization (UVMR), multivariable Mendelian randomization (MVMR), and colocalization, based on summary data from large sex-combined and sex-specific genetic studies, we estimated the univariable associations between: (i) body mass index (BMI) and waist-hip ratio (WHR) and overall and site-specific (colon, proximal colon, distal colon, and rectal) CRC risk, (ii) BMI and WHR and circulating proteins, and (iii) adiposity-associated circulating proteins and CRC risk.

View Article and Find Full Text PDF

Monitoring molecular markers associated with antimalarial drug resistance in south-east Senegal from 2021 to 2023.

J Antimicrob Chemother

January 2025

Institut Pasteur de Dakar, Immunophysiopathology and Infectious Diseases Department, G4-Malaria Experimental Genetic Approaches and Vaccines Unit, Dakar, Senegal.

Background: Since 2006, artemisinin-based combination therapies (ACTs) have been introduced in Senegal in response to chloroquine resistance (CQ-R) and have shown high efficacy against Plasmodium falciparum. However, the detection of the PfKelch13R515K mutation in Kaolack, which confers artemisinin resistance in vitro, highlights the urgency of strengthening antimalarial drug surveillance to achieve malaria elimination by 2030.

Objective: To assess the proportion of P.

View Article and Find Full Text PDF

A Stereoselective Oxidative Dimerization En Route to (-)-Lomaiviticin A.

Org Lett

January 2025

Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States.

We describe a stereoselective synthesis of the dimeric diazofluorene , a potential precursor to the cytotoxic -symmetric bacterial metabolite (-)-lomaiviticin A (). An efficient route was developed to convert the tetracyclic diol to the diketone (five steps, 30% overall). Oxidative dimerization of the enoxysilane provided the -symmetric dimeric diazofluorene in 56% yield and with 15:1:0 diastereoselectivity.

View Article and Find Full Text PDF

Surveillance for variants escaping detection with the Aptima Combo 2 assay in Canada from 2019 to 2021.

Microbiol Spectr

January 2025

National Microbiology Laboratory Branch, Public Health Agency of Canada, Winnipeg, Manitoba, Canada.

Unlabelled: Nucleic acid amplification tests (NAATs) are the method of choice for diagnosis, but these strategies are susceptible to target site mutations. variants escaping detection with the Aptima Combo 2 (AC2) assay on the Hologic Panther instrument from 23S rRNA mutations have been reported in Nordic countries, England, Japan, and the United States. Given the potential for false negative results, this study investigated whether strains of with AC2 target site mutations were present in Canada.

View Article and Find Full Text PDF

Existing genetic classification systems for porcine reproductive and respiratory syndrome virus type 2 (PRRSV-2), such as restriction fragment length polymorphisms and sub-lineages, are unreliable indicators of close genetic relatedness or lack sufficient resolution for epidemiological monitoring routinely conducted by veterinarians. Here, we outline a fine-scale classification system for PRRSV-2 genetic variants in the United States. Based on >25,000 U.

View Article and Find Full Text PDF

Regular exercise is important for overall health, yet exercise participation in the United States remains low. Exercise promotion depends on identifying factors such as personality that might influence exercise participation. Sensory processing sensitivity (SPS), a personality trait described as the tendency to deeply process environmental stimuli, is a psychological factor that may influence exercise participation.

View Article and Find Full Text PDF

Phenomenological Modeling of Antibody Response from Vaccine Strain Composition.

Antibodies (Basel)

January 2025

Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA.

The elicitation of broadly neutralizing antibodies (bnAbs) is a major goal of vaccine design for highly mutable pathogens, such as influenza, HIV, and coronavirus. Although many rational vaccine design strategies for eliciting bnAbs have been devised, their efficacies need to be evaluated in preclinical animal models and in clinical trials. To improve outcomes for such vaccines, it would be useful to develop methods that can predict vaccine efficacies against arbitrary pathogen variants.

View Article and Find Full Text PDF

Spinal muscular atrophy (SMA) is a degenerative neuromuscular condition resulting from a homozygous deletion of the survival motor neuron 1 () gene in 95% of patients. A timely diagnosis via newborn screening (NBS) and initiating treatment before the onset of symptoms are critical for improving health outcomes in affected individuals. We carried out a screening test by quantitative PCR (qPCR) to amplify the exon seven of using dried blood spot (DBS) samples.

View Article and Find Full Text PDF

For many genetic disorders, there are no specific metabolic biomarkers nor analytical methods suitable for newborn population screening, even where highly effective preemptive treatments are available. The direct measurement of signature peptides as a surrogate marker for the protein in dried blood spots (DBSs) has been shown to successfully identify patients with Wilson Disease (WD) and three life-threatening inborn errors of immunity, X-linked agammaglobulinemia (XLA), Wiskott-Aldrich syndrome (WAS), and adenosine deaminase deficiency (ADAD). A novel proteomic-based multiplex assay to detect these four conditions from DBS using high-throughput LC-MS/MS was developed and validated.

View Article and Find Full Text PDF

Parent Reports of Developmental Service Utilization After Newborn Screening.

Int J Neonatal Screen

December 2024

RTI International, 3040 E. Cornwallis Road, Research Triangle Park, P.O. Box 12194, Research Triangle Park, NC 27709, USA.

Newborn screening (NBS) presents an opportunity to identify a subset of babies at birth who are at risk for developmental delays and could benefit from a range of developmental services. Potential developmental services in the United States include Part C Early Intervention (EI), private therapies, and school-based services. Using parent-reported outcomes, this study examined the rates at which a sample of children diagnosed with NBS conditions used each developmental service.

View Article and Find Full Text PDF

Background: There is a paucity of evidence on the association between genetic propensity for hippocampal atrophy with cognitive outcomes. Therefore, we examined the relationship of the polygenic risk score for hippocampal atrophy (PRShp) with the incidence of amnestic mild cognitive impairment (aMCI) and Alzheimer's disease (AD) as well as the rates of cognitive decline.

Methods: Participants were drawn from the population-based HELIAD cohort.

View Article and Find Full Text PDF

Background: Heavy alcohol consumption (HAC) has a profound adverse effect on human health. Unfortunately, there is a relative lack of tools that are easily implementable in clinical settings and that can be used to supplement self-reporting in the diagnosis and management of HAC. In part, this paucity is due to limitations of currently available biological measures and a mismatch between available biological measures and the needs of clinicians managing HAC.

View Article and Find Full Text PDF

Background: Parkinson's disease (PD) is a progressive neurodegenerative condition characterized by the degradation of dopaminergic pathways in the brain. As the population in the United States continues to age, it is essential to understand the trends in mortality related to PD. This analysis of PD's mortality characterizes temporal shifts, examines demographic and regional differences, and provides machine-learning predictions.

View Article and Find Full Text PDF

Neurodegenerative Disorders in Criminal Offending and Cognitive Decline Among Aging Inmates.

NeuroSci

January 2025

Department of Neuroscience "Rita Levi Montalcini", University of Turin, 10126 Turin, Italy.

Dementia, including Alzheimer's disease (AD) and frontotemporal dementia (FTD), presents critical challenges for correctional systems, particularly as global populations age. AD, affecting 60-80% of dementia cases, primarily impairs memory and cognition in individuals over 65. In contrast, FTD, rarer than AD but not uncommon in those under 65, affects the frontal and temporal brain regions, leading to deficits in social behavior, language, and impulse control, often resulting in antisocial actions and legal consequences.

View Article and Find Full Text PDF

Food is essential for human survival; however, food can be an important route of exposure to contaminants. This study investigated the presence and distribution of anthropogenic contaminants in food consumed by families with small children in South Florida, United States, evaluating seasonal and socio-economic variabilities in chemical composition. QuEChERS protocols, followed by non-targeted analysis (NTA) using an LC-Orbitrap HRMS system, were used for the comprehensive screening of organic contaminants.

View Article and Find Full Text PDF