Acarbose (ACA), a well-studied and effective inhibitor of α-amylase and α-glucosidase, is a postprandial-acting antidiabetic medicine. The membrane of the erythrocyte is an excellent tool for analyzing different physiological and biochemical activities since it experiences a range of metabolic alterations throughout aging. It is uncertain if ACA modulates erythrocyte membrane activities in an age-dependent manner. As a result, the current study was conducted to explore the influence of ACA on age-dependent deteriorated functions of transporters/exchangers, disrupted levels of various biomarkers such as lipid hydroperoxides (LHs), protein carbonyl (PCO), sialic acid (SA), total thiol (-SH), and erythrocyte membrane osmotic fragility. In addition to a concurrent increase in Na/H exchanger activity and concentration of LH, PCO, and osmotic fragility, we also detected a considerable decrease in membrane-linked activities of Ca-ATPase (PMCA) and Na/K-ATPase (NKA), as well as concentrations of SA and -SH in old-aged rats. The aging-induced impairment of the activities of membrane-bound ATPases and the changed levels of redox biomarkers were shown to be effectively restored by ACA treatment.

Download full-text PDF

Source
http://dx.doi.org/10.1089/rej.2023.0010DOI Listing

Publication Analysis

Top Keywords

erythrocyte membrane
12
osmotic fragility
8
acarbose mitigates
4
mitigates age-dependent
4
age-dependent alterations
4
erythrocyte
4
alterations erythrocyte
4
membrane
4
membrane transporters
4
transporters aging
4

Similar Publications

Omega-3 fatty acids reduce triglycerides and have several positive effects on different organs and systems. They are also found in the plasma membrane in variable amounts in relation to genetics and diet. However, it is still unclear whether omega-3 supplementation can reduce the occurrence of major cardiovascular events (MACEs).

View Article and Find Full Text PDF

mRNA-based vaccines against the COVID-19 pandemic have propelled the use of nucleic acids for drug delivery. Conventional lipid-based carriers, such as liposomes and nanolipogels, effectively encapsulate and deliver RNA but are hindered by issues such as premature burst release and immunogenicity. To address these challenges, cell membrane-coated nanoparticles offer a promising alternative.

View Article and Find Full Text PDF

Epicatechin Influence on Biochemical Modification of Human Erythrocyte Metabolism and Membrane Integrity.

Int J Mol Sci

December 2024

Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy.

Red blood cells (RBCs) are the main cells of the blood, perform numerous functions within the body and are in continuous contact with endogenous and exogenous molecules. In this context, the study aims to investigate the effect of epicatechin (EC) (flavan-3-ols) on the erythrocytes, analyzing the protective effect of the molecule and the action exerted on metabolism and RBC membrane. The effect of EC on RBC viability has been evaluated through the change in hemolysis and methemoglobin, assessing caspase 3 activity and performing a cytofluorometric analysis.

View Article and Find Full Text PDF

Malaria monoclonals block brain binding.

Trends Parasitol

January 2025

Department of Infectious Diseases, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne 3000, Australia; Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne 3000, Australia.

In Plasmodium falciparum malaria, infected cells accumulate in blood vessels of organs, including the brain. Recently, Reyes et al. identified monoclonal antibodies that stop infected cells from binding to the endothelial protein C receptor (EPCR) in a model of brain blood vessels.

View Article and Find Full Text PDF

Acquisition of Fc-afucosylation of PfEMP1-specific IgG is age-dependent and associated with clinical protection against malaria.

Nat Commun

January 2025

Centre for translational Medicine and Parasitology, Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.

Protective immunity to malaria depends on acquisition of parasite-specific antibodies, with Plasmodium falciparum erythrocyte membrane protein 1 (PfEMP1) being one of the most important target antigens. The effector functions of PfEMP1-specific IgG include inhibition of infected erythrocyte (IE) sequestration and opsonization of IEs for cell-mediated destruction. IgG glycosylation modulates antibody functionality, with increased affinity to FcγRIIIa for IgG lacking fucose in the Fc region (Fc-afucosylation).

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!