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High prevalence of alcohol use disorders in 454 young adult offspring from the San Diego prospective study.
Alcohol Clin Exp Res (Hoboken)
January 2025
Department of Psychiatry, University of California San Diego Medical School, San Diego, California, USA.
Background: Preliminary evaluations of 212 drinking offspring from the San Diego Prospective Study (SDPD) indicated that over 50% developed alcohol use disorder (AUD) by their mid-20s. The present analysis evaluated if those findings remained robust when the group increased to 454 individuals, a sample size that facilitated a search for potential contributors to the high AUD prevalence.
Methods: Semistructured interviews were used to evaluate lifetime AUD diagnoses in 224 daughters and 230 sons from the SDPS (N = 454) by mean age 26.
Subtypes of brain change in aging and their associations with cognition and Alzheimer's disease biomarkers.
Neurobiol Aging
December 2024
Center for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, Oslo 0373, Norway.
Structural brain changes underlie cognitive changes and interindividual variability in cognition in older age. By using structural MRI data-driven clustering, we aimed to identify subgroups of cognitively unimpaired older adults based on brain change patterns and assess how changes in cortical thickness, surface area, and subcortical volume relate to cognitive change. We tested (1) which brain structural changes predict cognitive change (2) whether these are associated with core cerebrospinal fluid (CSF) Alzheimer's disease biomarkers, and (3) the degree of overlap between clusters derived from different structural modalities in 1899 cognitively healthy older adults followed up to 16 years.
View Article and Find Full Text PDFLocalized molecular chaperone synthesis maintains neuronal dendrite proteostasis.
Nat Commun
December 2024
Department of Biochemistry, McGill University, Montreal, QC, Canada.
Proteostasis is maintained through regulated protein synthesis and degradation and chaperone-assisted protein folding. However, this is challenging in neuronal projections because of their polarized morphology and constant synaptic proteome remodeling. Using high-resolution fluorescence microscopy, we discover that hippocampal and spinal cord motor neurons of mouse and human origin localize a subset of chaperone mRNAs to their dendrites and use microtubule-based transport to increase this asymmetric localization following proteotoxic stress.
View Article and Find Full Text PDFMultimodal Imaging Unveils the Impact of Nanotopography on Cellular Metabolic Activities.
Chem Biomed Imaging
December 2024
Shu Chien-Gene Lay Department of Bioengineering, University of California San Diego, La Jolla, California 92093, United States.
Nanoscale surface topography is an effective approach in modulating cell-material interactions, significantly impacting cellular and nuclear morphologies, as well as their functionality. However, the adaptive changes in cellular metabolism induced by the mechanical and geometrical microenvironment of the nanotopography remain poorly understood. In this study, we investigated the metabolic activities in cells cultured on engineered nanopillar substrates by using a label-free multimodal optical imaging platform.
View Article and Find Full Text PDFAmiloride sensitizes prostate cancer cells to the reversible tyrosine kinase inhibitor lapatinib by modulating Erbb3 subcellular localization.
Cell Mol Life Sci
December 2024
Research Service, VA Northern California Health Care System, Mather, CA, USA.
Neoadjuvant therapy (NAT) has been studied in clinically localized prostate cancer (PCa) to improve the outcomes from radical prostatectomy (RP) by 'debulking' of high-risk PCa; however, using androgen deprivation therapy (ADT) at this point risks castration resistant PCa (CRPC) clonal proliferation. Our goal is to identify alternative NAT that reduce hormone sensitive PCa (HSPC) without affecting androgen receptor (AR) transcriptional activity. PCa is associated with increased expression and activation of the epidermal growth factor receptor (EGFR) family, including HER2 and ErbB3.
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