trans- and cis-Icosyl, docosyl, and tetracosyl p-coumarates, constituents of Artemisia annua L., and their structurally-related compounds were synthesized and evaluated for inhibitory activity on DNA polymerases alpha and beta. Among 30 compounds synthesized, octadecyl trans- and cis-p-coumarates and octadecyl p-hydroxyphenylpropiolate showed strong inhibitory activity on DNA polymerases alpha and beta.
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http://dx.doi.org/10.1248/cpb.57.476 | DOI Listing |
PLoS One
January 2025
Immunology and Immunotherapy Division, Center of Molecular Immunology (CIM), Havana, Cuba.
SARS-CoV-2 has continued spreading around the world in recent years since the initial outbreak in 2019, frequently developing into new variants with greater human infectious capacity. SARS-CoV-2 and its mutants use the angiotensin-converting enzyme 2 (ACE2) as a cellular entry receptor, which has triggered several therapeutic strategies against COVID-19 relying on the use of ACE2 recombinant proteins as decoy receptors. In this work, we propose an ACE2 silent Fc fusion protein (ACE2-hFcLALA) as a candidate therapy against COVID-19.
View Article and Find Full Text PDFChem Commun (Camb)
January 2025
Department of Chemistry, Khalifa University, SAN Campus, Abu Dhabi, United Arab Emirates.
During the process of developing smart chiroptical luminophores, small chiral organic dyes have emerged as candidates of utmost importance. In this regard, the chiral variants of boron dipyrromethene (BODIPY) serve as suitable molecules owing to their excellent photophysical properties such as high fluorescence quantum yields, narrow emission bandwidths with high peak intensities, high photo and chemical stability, and higher molar extinction coefficients. Thus, the last decade observed an influx of research from various research groups for the induction of chirality in originally achiral BODIPY.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Institut de recherches cliniques de Montréal (IRCM), Montréal, QC, Canada.
Background: Soluble Aβ oligomers (AβOs) induce synapse dysfunction, leading to cognitive impairment and memory deficits in Alzheimer's disease (AD). Our laboratory and several research groups characterized neurexin family members' physiological roles, pivotal synaptic adhesion molecules for development, plasticity, and maintenance. Beyond their normal functions, we found neurexins binding to AβOs causes AβO-induced neurexin dysregulation.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio De Janeiro, Rio de Janeiro, Brazil.
Background: Alzheimer's disease (AD) is the leading cause of dementia in elderly humans worldwide. More than 40 million people currently suffer from AD, and this prevalence tends to increase considerably in the coming decades due to increased longevity. The unfolded protein response (UPR) is an adaptive signaling mechanism that aims to maintain cell viability under misfolded protein accumulation and endoplasmic reticulum stress.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Institute of Neuropathology, Fukushimura Hospital, Toyohashi, Japan.
Background: The Fukushimura (welfare village), located in Toyohashi city, Japan, is a unique complex of various nursing home facilities including dementia homes, Day-care houses, homes for disabled and mentally retarded, and the Fukushimura Hospital. This village is totally managed by private sector, the Sawarabi Medical Cooperative. About 800 elderly people reside in this area.
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