Results 71 to 80 of about 30,707 (232)
The interaction of spermine and pentamines with DNA [PDF]
Biochemical Journal, 1987 We studied the effects of spermine, two naturally-occurring pentamines isolated from the thermophile Thermus thermophilus and one synthetic pentamine on the aggregation and ‘melting’ temperature of calf-thymus DNA and on the B-to-Z transition of poly(dG-me5dC). All pentamines caused aggregation of DNA at much lower concentrations than that of spermine.
H S, Basu, L J, Marton
openaire +2 more sources
Plant, Cell &Environment, EarlyView.ABSTRACT Seed defence priming is emerging as a novel, cost‐efficient and environmentally safe tool for pest management. It has been proposed as a means to uncouple the defence‐growth trade‐off in plants by enhancing defence responses with minimal fitness costs, but the mechanisms underlying this role remain elusive.
Lucia Talavera‐Mateo +5 more
wiley +1 more source
Spermine causes caspase activation in leukaemia cells
, 1998 Exposure of several leukaemia cell types to the polyamine spermine triggered caspase activation. In HL60 cells, the onset of caspase activity correlated with the accumulation of spermine, and was accompanied by the processing of the caspase-3 precursor ...
Pignatti, Carla +15 more
core +1 more source
The Emerging Clinical Role of Spermine in Prostate Cancer
, 2021 Spermine, a member of polyamines, exists in all organisms and is essential for normal cell growth and function. It is highly expressed in the prostate compared with other organs and is detectable in urine, tissue, expressed prostatic secretions, and ...
Christine Yim-Ping Wong +5 more
core +1 more source
Activation of hepatic glutaminase by spermine [PDF]
Biochemical Journal, 1995 Glutaminase activity in intact mitochondria from rat liver is activated by spermine, as indicated both by increased glutamate production from glutamine and by increased respiration with glutamine as sole substrate. Glutaminase activity assayed in membranes from frozen-thawed mitochondria, is activated by spermine about 6-fold at physiological ...
Z, Kovacevic +4 more
openaire +2 more sources
Experimental Physiology, EarlyView.Abstract In addition to controlling muscle mass, myostatin may support oxidative metabolism and endurance. Loss of function through gene knockout or post‐natal blockade generally lowers muscle oxidative capacity and increases fatigability. These observations imply that myostatin activation could promote a more oxidative and less fatigable muscle ...
Andy V. Khamoui +6 more
wiley +1 more source
Astrocytic mGluR5 Regulation of Synaptic Transmission is Activity‐Dependent in Adult Rats
Glia, Volume 74, Issue 8, August 2026.In adulthood, astrocytic mGluR5 increases synaptic efficacy through presynaptic A2ARs. This occurs when a small number of synapses are activated simultaneously. This pathway is abolished when numerous synapses are recruited. ABSTRACT Data accumulated over the last two decades have demonstrated that astrocytes play key roles in the regulation of ...
Sarah Mountadem +18 more
wiley +1 more source
Food Frontiers, Volume 7, Issue 4, July 2026.This review analyzes single/combined abiotic (light, water, nutrients, hormones) and biotic (microbes, yeast) elicitors regulating signaling, gene expression, and metabolism to boost plant secondary metabolites. It highlights synergistic multielicitor strategies for crop quality and functional foods, while critically addressing current limitations and ...
Yifei Sun +6 more
wiley +1 more source
, 2018 Inelastic Neutron Scattering spectrum of Diplatinum spermine, C10H26Cl4N4Pt2, measured on the TOSCA instrument.
Marques, M.P.M.
core +1 more source
Different roles of spermine in glucocorticoid- and Fas-induced apoptosis
, 2001 Two experimental systems representative of the mitochondrial and death receptor apoptotic pathways are the dexamethasone-induced programmed cell death in mouse thymocytes and the antibody-mediated cross-ligation of the Fas receptor in the human leukemic ...
Hegardt, Cecilia, +3 more
core +2 more sources