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Reactive Byproducts of Plant Redox Metabolism and Protein Functions.
Acta Naturae
January 2024
St Petersburg University, St. Petersburg, 199034 Russian Federation.
Living organisms exhibit an impressive ability to expand the basic information encoded in their genome, specifically regarding the structure and function of protein. Two basic strategies are employed to increase protein diversity and functionality: alternative mRNA splicing and post-translational protein modifications (PTMs). Enzymatic regulation is responsible for the majority of the chemical reactions occurring within living cells.
View Article and Find Full Text PDFMetallofullerenol Gd@C(OH) preserves human erythrocyte plasma membrane integrity from AAPH-induced oxidative stress: molecular mechanisms and antioxidant activity.
Free Radic Biol Med
January 2025
Department of Oncobiology and Epigenetics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland; Military Institute of Medicine - National Research Institute, Szaserow 128, 04-141 Warsaw, Poland. Electronic address:
Metallofullerenols and fullerenols have attracted attention due to their remarkable ability to interact with various biologically relevant molecules, paving the way for biomedical applications, ranging from medical imaging techniques to drug carriers, acting with increased efficiency and reduced side effects. In this work, we investigated the effects of two fullerene derivatives, Gd@C(OH) and C(OH), on erythrocyte membrane components under oxidative stress conditions induced by 2,2'-azobis(2-amidinopropane) dihydrochloride (AAPH) as a source of peroxyl radicals. The results demonstrated that gadolinium encapsulation within the fullerene cage enhanced the electron affinity of Gd@C(OH), resulting in stronger antioxidant activity.
View Article and Find Full Text PDFAllostatic Load and Oxidative Stress Markers in Women With Early- and Late-Onset Preeclampsia.
Cureus
December 2024
Coordination of Gynecological and Perinatal Endocrinology, National Institute of Perinatology Isidro Espinosa de los Reyes, Mexico City, MEX.
Background: Allostatic load and oxidative stress (OS) markers differ in women with and without preeclampsia. However, there is no difference in allostatic load and OS markers between late-onset preeclampsia (L-OP) and early-onset preeclampsia (E-OP). This study aimed to compare the concentrations of allostatic load and OS markers in pregnant women with L-OP and E-OP.
View Article and Find Full Text PDFDual-sided centripetal microgrooved poly (D,L-lactide-co-caprolactone) disk encased in immune-regulating hydrogels for enhanced bone regeneration.
Mater Today Bio
February 2025
China Uruguay Bio-Nano Pharmaceutical Joint Laboratory, Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, 308 Ningxia Road, Qingdao, 266071, Shandong, China.
Well-designed artificial scaffolds are urgently needed due to the limited self-repair capacity of bone, which hampers effective regeneration in critical defects. Optimal scaffolds must provide physical guidance to recruit cells and immune regulation to improve the regenerative microenvironment. This study presents a novel scaffold composed of dual-sided centripetal microgrooved poly(D,L-lactide-co-caprolactone) (PLCL) film combined with a dynamic hydrogel containing prednisolone (PLS)-loaded Prussian blue nanoparticles (PB@PLS).
View Article and Find Full Text PDFTailored biomimetic nanoreactor improves glioma chemodynamic treatment via triple glutathione depletion and prompt acidity elevation.
Mater Today Bio
February 2025
Department of Neurosurgery, Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, China.
Chemodynamic therapy (CDT) is an emerging antitumor strategy utilizing iron-initiated Fenton reaction to destroy tumor cells by converting endogenous HO into highly toxic hydroxyl radical (OH). However, the intratumoral overexpressed glutathione (GSH) and deficient acid greatly reduce CDT efficacy because of OH scavenging and decreased OH production efficiency. Even worse, the various physiological barriers, especially in glioma, further put the brakes on the targeted delivery of Fenton agents.
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