Results 91 to 100 of about 27,012 (233)

Spermine Enhances the Peroxidase Activities of Multimeric Antiparallel G-quadruplex DNAzymes

open access: yesBiosensors
G-quadruplex (G4) DNAzymes with peroxidase activities hold potential for applications in biosensing. While these nanozymes are easy to assemble, they are not as efficient as natural peroxidase enzymes.
Raphael I. Adeoye   +9 more
doaj   +1 more source

Exploring the Chemical Fingerprint and In Vitro Biocompatibility of Wild‐Growing and Ex Situ Cultivated Stachys cretica subsp. cretica in the Same Region (Crete, Greece)

open access: yesChemistry &Biodiversity, Volume 23, Issue 1, January 2026.
Methanol extracts and infusions of wild and cultivated Stachys cretica subsp. cretica share similar profiles. ABSTRACT The genus Stachys (Lamiaceae) comprises numerous species recognized for their ethnopharmacological importance and rich chemical profiles. In this study, we investigated the chemical composition and biocompatibility of both wild‐growing
Ekaterina‐Michaela Tomou   +6 more
wiley   +1 more source

Transcriptional Analysis and Genome‐Wide Identification of HA, FRO, and IRT Gene Families Reveal Key Regulators in Pear Seedlings to Short‐Term Iron Deficiency Stress

open access: yesFood and Energy Security, Volume 15, Issue 1, January/February 2026.
ABSTRACT Iron (Fe) is an essential micronutrient for plant photosynthesis and human health. Pear represents a widely consumed fruit for human Fe intake, yet its yield and quality are frequently challenged by Fe deficiency (FD) stress. Despite the prevalence of FD stress in agricultural production under generally alkaline and calcareous conditions, pear
Guoling Guo   +11 more
wiley   +1 more source

Spermine Significantly Increases the Transfection Efficiency of Cationic Polymeric Gene Vectors

open access: yesPharmaceutics
Background/Objectives: Non-viral vectors have gained recognition for their ability to enhance the safety of gene delivery processes. Among these, polyethyleneimine (PEI) stands out as the most widely utilized cationic polymer due to its accessibility ...
Yue Lv   +3 more
doaj   +1 more source

Hypomorphic ATP11c is a novel regulator of decreased efficacy of transfused red blood cells in humans and mice

open access: yesHemaSphere, Volume 10, Issue 1, January 2026.
Abstract Chronic red blood cell (RBC) transfusion sustains patients with diverse hematologic disorders, but repeated transfusion leads to iron overload and alloimmunization. Reducing transfusion burden requires identifying donor units that circulate more effectively after storage, yet determinants of this variability remain incompletely defined.
James C. Zimring   +13 more
wiley   +1 more source

Alterations of renal polyamine metabolism in mice with folic acid-induced chronic kidney disease

open access: yesBiochemistry and Biophysics Reports
Chronic kidney disease (CKD) often follows acute kidney injury, leading to renal fibrosis and progressive renal failure. Spermine, a polyamine with antioxidant and anti-inflammatory properties, helps reduce renal fibrosis and may serve as a biomarker for
Cheng Xue   +4 more
doaj   +1 more source

Notes on Spermine [PDF]

open access: yesBiochemical Journal, 1925
H W, Dudley, O, Rosenheim
openaire   +2 more sources

From Synaptic Plasticity and Critical Periods to Social Behavior and Stress: Getting to, and Staying in, CA2

open access: yesHippocampus, Volume 36, Issue 1, January 2026.
ABSTRACT Hippocampal Area CA2, with some exceptions, had long been neglected in in vivo studies, due largely to its small size, and in in vitro studies because of its general similarity to CA3 and CA1. Increasing evidence showing that CA2 was molecularly distinct led to the increased appreciation of CA2 as a separate region, and as such, that it likely
Serena M. Dudek
wiley   +1 more source

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