621 results match your criteria: "Dornsife College of Letters[Affiliation]"
Soc Sci Res
November 2023
Department of Sociology and Criminology, College of the Liberal Arts, Penn State University, 211 Oswald Tower, University Park, PA, USA 16801. Electronic address:
Objective: This study examines the implications of grandparental death for cognitive skills in middle childhood.
Method: This study uses data from the Future of Families and Child Wellbeing Study (N = 2479) to estimate ordinary least squares regression models of the associations between grandparental death and subsequent cognitive skills among children in middle childhood.
Results: Experiencing a grandparental death between ages 5 and 9 is associated with boys' lower reading, verbal, and math scores at age 9, with associations most notable for Black and Hispanic boys; grandparental death before age 5 has minimal influence on boys' cognitive skills at age 9.
NPJ Digit Med
November 2023
Institute for Food System Equity, Center for Economic and Social Research, University of Southern California, Los Angeles, CA, USA.
The characteristics of food environments people are exposed to, such as the density of fast food (FF) outlets, can impact their diet and risk for diet-related chronic disease. Previous studies examining the relationship between food environments and nutritional health have produced mixed findings, potentially due to the predominant focus on static food environments around people's homes. As smartphone ownership increases, large-scale data on human mobility (i.
View Article and Find Full Text PDFJ Pediatr Nurs
February 2024
Division of Neonatology, CHLA, and KSOM USC, Los Angeles, CA, United States of America.
Purpose: Congenital heart disease affects thousands of newborns each year in the United States. Previous United States-based research has explored how sociodemographic factors may impact health outcomes in infants with congenital heart disease; however, their impact on the incidence of congenital heart disease is unclear. We explored the sociodemographic profile related to congenital heart disease to help address health disparities that arise from race and social determinants of health.
View Article and Find Full Text PDFAdv Sci (Weinh)
February 2024
Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, CA, 90033, USA.
Keratins are an integral part of cell structure and function. Here, it is shown that ectopic expression of a truncated isoform of keratin 81 (tKRT81) in breast cancer is upregulated in metastatic lesions compared to primary tumors and patient-derived circulating tumor cells, and is associated with more aggressive subtypes. tKRT81 physically interacts with keratin 18 (KRT18) and leads to changes in the cytosolic keratin intermediate filament network and desmosomal plaque formation.
View Article and Find Full Text PDFChem Commun (Camb)
November 2023
Department of Pharmacology and Pharmaceutical Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA.
An NAD featuring an adenosyl 4'-azido functions as a general substrate for poly-ADP-ribose polymerases. Its derived mono- and poly-ADP-ribosylated proteins can be adequately recognized by distinct ADP-ribosylation-specific readers. This molecule represents the first ribose-functionalized NAD with versatile activities across different ADP-ribosyltransferases and provides insight into developing new probes for ADP-ribosylation.
View Article and Find Full Text PDFLife (Basel)
October 2023
Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.
Artificial intelligence (AI) has been an important topic within radiology. Currently, AI is used clinically to assist with the detection of lesions through detection systems. However, a number of recent studies have demonstrated the increased value of neural networks in radiology.
View Article and Find Full Text PDFGlob Chang Biol
December 2023
Department of Biological Sciences, USC Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, California, USA.
Cell Rep
October 2023
Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA; Molecular and Computational Biology Department, USC Dornsife College of Letters, Arts, and Sciences, Los Angeles, CA 90089, USA; Biochemistry and Molecular Medicine Department, USC Keck School of Medicine, Los Angeles, CA 90089, USA; Epigenetics and Gene Regulation, USC Norris Comprehensive Cancer Center, Los Angeles, CA 90089, USA; USC Stem Cell Initiative, Los Angeles, CA 90089, USA. Electronic address:
The African turquoise killifish (Nothobranchius furzeri), the shortest-lived vertebrate that can be bred in captivity, is an emerging model organism for aging research. Here, we describe a multitissue, single-cell gene expression atlas of female and male blood, kidney, liver, and spleen. We annotate 22 cell types, define marker genes, and infer differentiation trajectories.
View Article and Find Full Text PDFSci Data
October 2023
Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, 90089, USA.
The African turquoise killifish is an emerging vertebrate model organism with great potential for aging research due to its naturally short lifespan. Thus far, turquoise killifish aging 'omic' studies have examined a single organ, single sex and/or evaluated samples from non-reference strains. Here, we describe a resource dataset of ribosomal RNA-depleted RNA-seq libraries generated from the brain, heart, muscle, and spleen from both sexes, as well as young and old animals, in the reference GRZ turquoise killifish strain.
View Article and Find Full Text PDFBrief Bioinform
September 2023
Titus Family Department of Clinical Pharmacy, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, California, 90089, USA.
Biomed Opt Express
August 2023
Larry L. Hillblom Islet Research Center, University of California Los Angeles, David Geffen School of Medicine, Los Angeles, CA 90095, USA.
Glucose stimulated insulin secretion is mediated by glucose metabolism via oxidative phosphorylation generating ATP that triggers membrane depolarization and exocytosis of insulin. In stressed beta cells, glucose metabolism is remodeled, with enhanced glycolysis uncoupled from oxidative phosphorylation, resulting in the impaired glucose-mediated insulin secretion characteristic of diabetes. Relative changes in glycolysis and oxidative phosphorylation can be monitored in living cells using the 3-component fitting approach of fluorescence lifetime imaging microscopy (FLIM).
View Article and Find Full Text PDFGeroscience
December 2023
Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, 90089, USA.
Molecular homeostats play essential roles across all levels of biological organization to ensure a return to normal function after responding to abnormal internal and environmental events. SKN-1 is an evolutionarily conserved cytoprotective transcription factor that is integral for the maintenance of cellular homeostasis upon exposure to a variety of stress conditions. Despite the essentiality of turning on SKN-1/NRF2 in response to exogenous and endogenous stress, animals with chronic activation of SKN-1 display premature loss of health with age, and ultimately, diminished lifespan.
View Article and Find Full Text PDFNPJ Precis Oncol
September 2023
Convergent Science Institute in Cancer, Michelson Center for Convergent Bioscience, University of Southern California, Los Angeles, CA, 90089, USA.
Multiple myeloma (MM) is accompanied by alterations to the normal plasma cell (PC) proteome, leading to changes to the tumor microenvironment and disease progression. There is a great need for understanding the consequences that lead to MM progression and for the discovery of new biomarkers that can aid clinical diagnostics and serve as targets for therapeutics. This study demonstrates the applicability of utilizing the single-cell high-definition liquid biopsy assay (HDSCA) and imaging mass cytometry to characterize the proteomic profile of myeloma.
View Article and Find Full Text PDFCurr Psychiatry Rep
October 2023
USC Mrs. T.H. Chan Division of Occupational Science and Occupational Therapy, University of Southern California, Los Angeles, CA, 90089, USA.
Purpose Of Review: While there are reports of differences in emotion processing in autism, it is less understood whether the emotion of disgust, in particular, plays a significant role in these effects. Here, we review literature on potential disgust processing differences in autism and its possible associations with autistic traits.
Recent Findings: In autism, there is evidence for differences in physical disgust processing, pica behaviors, attention away from other's disgust facial expressions, and differences in neural activity related to disgust processing.
bioRxiv
November 2023
Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA.
Long interspersed element 1 (L1) are a family of autonomous, actively mobile transposons that occupy ~17% of the human genome. A number of pleiotropic effects induced by L1 (promoting genome instability, inflammation, or cellular senescence) have been observed, and L1's contributions to aging and aging diseases is an area of active research. However, because of the cell type-specific nature of transposon control, the catalogue of L1 regulators remains incomplete.
View Article and Find Full Text PDFBrain Sci
August 2023
Division of Occupational Science and Occupational Therapy, University of Southern California, Los Angeles, CA 90089, USA.
Prior studies show differences in empathy and affect-recognition ability between those with autism spectrum disorder (ASD) and typically developing (TD) individuals. Autistic individuals also exhibit increased behavioral, gastrointestinal, and sleep issues. In the current study, we explored the differences in empathy and affect recognition between the ASD and TD groups; and we investigated their associations with conditions co-occurring in ASD.
View Article and Find Full Text PDFbioRxiv
August 2023
Titus Family Department of Clinical Pharmacy, USC Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, 1540 Alcazar Street, Los Angeles, CA 90033, USA.
Data-driven computational analysis is becoming increasingly important in biomedical research, as the amount of data being generated continues to grow. However, the lack of practices of sharing research outputs, such as data, source code and methods, affects transparency and reproducibility of studies, which are critical to the advancement of science. Many published studies are not reproducible due to insufficient documentation, code, and data being shared.
View Article and Find Full Text PDFCancers (Basel)
August 2023
Convergent Science Institute in Cancer, Michelson Center for Convergent Bioscience, University of Southern California, Los Angeles, CA 90089, USA.
Bi-directional crosstalk between the tumor and the tumor microenvironment (TME) has been shown to increase the rate of tumor evolution and to play a key role in neoplastic progression, therapeutic resistance, and a patient's overall survival. Here, we set out to use a comprehensive liquid-biopsy analysis to study cancer and specific TME cells in circulation and their association with disease status. Cytokeratin+, CD45- circulating rare cells (CRCs) from nine breast and four prostate cancer patients were characterized through morphometrics, single-cell copy number analysis, and targeted multiplexed proteomics to delineate cancer cell lineage from other rare cells originating in the TME.
View Article and Find Full Text PDFCortex
October 2023
Center for Neuroscience of Embodied Cognition (CeNEC), Brain and Creativity Institute, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA, USA; USC Mrs. T.H. Chan Division of Occupational Science and Occupational Therapy, University of Southern California, Los Angeles, CA, USA. Electronic address:
Prior studies have compared neural connectivity during mentalizing tasks in autism (ASD) to non-autistic individuals and found reduced connectivity between the inferior frontal gyrus (IFG) and mentalizing regions. However, given that the IFG is involved in motor processing, and about 80% of autistic individuals have motor-related difficulties, it is necessary to explore if these differences are specific to ASD or instead similar across other developmental motor disorders, such as developmental coordination disorder (DCD). Participants (29 ASD, 20 DCD, 31 typically developing [TD]; ages 8-17) completed a mentalizing task in the fMRI scanner, where they were asked to think about why someone was performing an action.
View Article and Find Full Text PDFJ Am Coll Health
August 2023
Suzanne Dworak-Peck School of Social Work, University of Southern California, Los Angeles, USA.
This study explores mental health stressors related to family dynamics of Korean American college students during the time of the COVID-19 pandemic. In January 2021, using purposive sampling, we recruited 15 Korean American student leaders at a west coast university. Self-identified leaders were interviewed Zoom, and data were transcribed verbatim and analyzed using a thematic analytic approach based on grounded theory.
View Article and Find Full Text PDFCommun Med (Lond)
July 2023
Department of Family Medicine, Keck School of Medicine of USC, Alhambra, CA, USA.
Background: Racial and ethnic minoritized groups are disproportionately at risk for Alzheimer's Disease (AD), but are not sufficiently recruited in AD neuroimaging research in the United States. This is important as sample composition impacts generalizability of findings, biomarker cutoffs, and treatment effects. No studies have quantified the breadth of race/ethnicity representation in the AD literature.
View Article and Find Full Text PDFSci Rep
July 2023
Convergent Science Institute in Cancer, Michelson Center for Convergent Bioscience, University of Southern California, Los Angeles, CA, 90089, USA.
Small cell lung cancer (SCLC) is an aggressive neuroendocrine tumor with low five-year survival rates. Recently described molecular phenotypes of SCLC exhibit differential vulnerabilities heralding potential for stratified treatment. Whilst tumor biopsy in SCLC is challenging, circulating tumor cells in the liquid biopsy are prevalent and can be repeatedly sampled accommodating the dynamic plasticity of SCLC phenotypes.
View Article and Find Full Text PDFJ Alzheimers Dis
August 2023
Department of Emergency Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
Background: Older adults are faced with many unique and highly consequential decisions such as those related to finances, healthcare, and everyday functioning (e.g., driving cessation).
View Article and Find Full Text PDFPublic Health Nutr
October 2023
Center for Economic and Social Research, Dornsife College of Letters Arts and Sciences, University of Southern California, Los Angeles, CA, USA.
Objective: The COVID-19 pandemic increased food insufficiency: a severe form of food insecurity. Drawing on an ecological framework, we aimed to understand factors that contributed to changes in food insufficiency from April to December 2020, in a large urban population hard hit by the pandemic.
Design: We conducted internet surveys every 2 weeks in April-December 2020, including a subset of items from the Food Insecurity Experience Scale.
Cancer
November 2023
Department of Population and Public Health Sciences, University of Southern California, Los Angeles, California, USA.
Background: The purpose of this study was to understand the experiences of Black patients with cancer in health care by comparing drivers of high and low ratings.
Methods: Semistructured in-depth interviews were conducted with 18 Black patients with cancer recruited from cancer survivorship support groups and Facebook between May 2019 and March 2020. Interviews were coded across all transcripts by using a thematic analysis approach before comparing low- and high-rating groups.