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Nanoplastic-Induced Developmental Toxicity in Ascidians: Comparative Analysis of Chorionated and Dechorionated Embryos.
J Xenobiot
January 2025
Laboratoire de Biologie du Développement (LBDV), Institut de la Mer de Villefranche (IMEV), Sorbonne Université, Centre National de la Recherche Scientifique (CNRS), 06230 Villefranche-sur-Mer, France.
Nanoplastics pose a growing threat to marine ecosystems, particularly affecting the early developmental stages of marine organisms. This study investigates the effects of amino-modified polystyrene nanoparticles (PS-NH, 50 nm) on the embryonic development of , a model ascidian species. Both chorionated and dechorionated embryos were exposed to increasing concentrations of PS-NH so morphological alterations could be assessed with a high-content analysis of the phenotypes and genotoxicity.
View Article and Find Full Text PDFThe neuroprotective role of volatile oils: insights into chemical profiles, characteristics, neurochemical mechanisms, and preclinical studies in Alzheimer's disease.
Inflammopharmacology
January 2025
Department of Community Medicine, Vidhyadeep Homoeopathic Medical College and Research Centre, Vidhyadeep University, Anita, Surat, Gujarat, 394110, India.
Volatile oils (VOs), synonymously termed essential oils (EOs), are highly hydrophobic liquids obtained from aromatic plants, containing diverse organic compounds for example terpenes and terpenoids. These oils exhibit significant neuroprotective properties, containing antioxidant, anti-inflammatory, anti-apoptotic, glutamate activation, cholinesterase inhibitory action, and anti-protein aggregatory action, making them potential therapeutic agents in managing neurodegenerative diseases (NDs). VOs regulate glutamate activation, enhance synaptic plasticity, and inhibit oxidative stress through the stimulation of antioxidant enzymes.
View Article and Find Full Text PDFNovel hybrid system based on carboxymethyl chitosan hydrogel encapsulating drug loaded nanoparticles for prolonged release of Vancomycin in the treatment of bacterial infection.
J Pharm Sci
January 2025
Institut Europeen des Membranes, IEM, UMR 5635, Univ Montpellier, CNRS, ENSCM, 34095, Montpellier, France. Electronic address:
Current bacterial infections clinical treatments, such as intravenous antibiotic administration and local injection, suffer from short action duration, repeated administrations, and severe cell toxicity. To address these limitations, it is imperative to develop sustained drug release system with prolonged antimicrobial effects. In this work, a hybrid system was prepared using EDC/NHS catalyzed crosslinking-based carboxymethyl chitosan (CMCS) hydrogel as a carrier to encapsulate biodegradable nanoparticles (NPs) loaded with vancomycin, an efficient antibacterial drug.
View Article and Find Full Text PDFA dual antibacterial action of soft quaternary ammonium compounds: bacteriostatic effects, membrane integrity, and reduced and toxicity.
RSC Adv
January 2025
University of Split, Faculty of Science, Department of Chemistry R. Bošković 33 Split Croatia
Quaternary ammonium compounds (QACs) have served as essential antimicrobial agents for nearly a century due to their rapid membrane-disrupting action. However, the emergence of bacterial resistance and environmental concerns have driven interest in alternative designs, such as "soft QACs", which are designed for enhanced biodegradability and reduced resistance potential. In this study, we explored the antibacterial properties and mechanisms of action of our newly synthesized soft QACs containing a labile amide bond within a quinuclidine scaffold.
View Article and Find Full Text PDFDevelopmental and Molecular Effects of C-Type Natriuretic Peptide Supplementation in In Vitro Culture of Bovine Embryos.
Int J Mol Sci
October 2024
Graduate Program in Pharmacology and Biotechnology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-970, SP, Brazil.
The use of C-type natriuretic peptide (CNP) in the interaction with the oocyte and in the temporary postponement of spontaneous meiosis resumption has already been well described. However, its action in pre-implantation developmental-stage embryos is yet to be understood. Thus, our study aimed to detect the presence of the canonical CNP receptor (natriuretic peptide receptor, NPR2) in germinal vesicle (GV)-, metaphase II (MII)-, presumptive zygote (PZ)-, morula (MO)-, and blastocyst (BL)-stage embryos and, later, to observe possible modulations on the embryos when co-cultured with CNP.
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