Results 1 to 10 of about 108,919 (320)
Plants, 2020 Polyamines are small organic compounds found in all living organisms. According to the high degree of positive charge at physiological pH, they interact with negatively charged macromolecules, such as DNA, RNA, and proteins, and modulate their activities.
Taku Takahashi
doaj +3 more sources
Health-Promoting Effects of Dietary Polyamines
Medical Sciences, 2021 The purpose of this paper is to summarize the latest information on the various aspects of polyamines and their health benefits. In recent years, attempts to treat cancer by reducing elevated polyamines levels in cancer cells have been made, with some ...
Rika Hirano +2 more
doaj +2 more sources
Diverse Functions of Polyamines in Virus Infection
Biomolecules, 2020 As obligate intracellular parasites, viruses rely on host cells for the building blocks of progeny viruses. Metabolites such as amino acids, nucleotides, and lipids are central to viral proteins, genomes, and envelopes, and the availability of these ...
Mason R. Firpo, Bryan C. Mounce
doaj +2 more sources
Cation Homeostasis: Coordinate Regulation of Polyamine and Magnesium Levels in Salmonella
mBio, 2023 Polyamines are organic cations that are important in all domains of life. Here, we show that in Salmonella, polyamine levels and Mg2+ levels are coordinately regulated and that this regulation is critical for viability under both low and high ...
Yumi Iwadate +2 more
doaj +1 more source
Polyamines and adventitious root formation in Vitis vinifera L.
OENO One, 2002 The effects of polyamines were examined for growth and polyamine contents in cultings, callus and primary adventitious roots of Vitis vinifera L. Variations in free, conjugated and wall-bound polyamines in cuttings were observed during rhizogenesis.
Laurence Geny +2 more
doaj +1 more source
Polyamine Homeostasis in Development and Disease
Medical Sciences, 2021 Polycationic polyamines are present in nearly all living organisms and are essential for mammalian cell growth and survival, and for development. These positively charged molecules are involved in a variety of essential biological processes, yet their ...
Shima Nakanishi, John L. Cleveland
doaj +1 more source
OENO One, 1996 Nitrogen is the most important element for higher plants, and plant productivity is to a large extend determined by nitrogen nutrition. Effects of nitrogen nutrition on levels of polyamines in leaves and grappes of two vines (Semillon and Sauvignon) are ...
Laurence Geny +3 more
doaj +1 more source
Free and Cell Wall-Bound Polyamines under Long-Term Water Stress Applied at Different Growth Stages of ×Triticosecale Wittm. [PDF]
PLoS ONE, 2015 Long-stemmed and semi-dwarf cultivars of triticale were exposed to water stress at tillering, heading and anthesis stage. Quantitative determination of free and cell wall-bound polyamines, i.e.
Tomasz Hura +4 more
doaj +1 more source
Glutamate, Ornithine, Arginine, Proline, and Polyamine Metabolic Interactions: The Pathway Is Regulated at the Post-Transcriptional Level [PDF]
, 2016 The metabolism of glutamate into ornithine, arginine, proline, and polyamines is a major network of nitrogen-metabolizing pathways in plants, which also produces intermediates like nitric oxide, and γ-aminobutyric acid (GABA) that play critical roles in ...
Boubker eBarchi +7 more
core +4 more sources
Influence of anti-hyperlipidemic activity by co-administration of polyamines and rutin with simvastatin [PDF]
Journal of HerbMed Pharmacology, 2023 Introduction: Natural polyphenols, rutin, endogenous polycations, and polyamines (spermine and spermidine) are reported to have beneficial effects on hyperlipidemia, obesity, and cardiovascular disease (CVD).
Rajesh R Patil +3 more
doaj +1 more source