Results 81 to 90 of about 34,064 (250)
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
Effect of spermine on divalent cations of human spermatozoa
, 1980 The present report deals with the effect of spermine (0.4-2.0 mg) on the intracellular levels of calcium, magnesium, sodium, and potassium in human spermatozoa.
Sheth, A. R. +3 more
core +1 more source
Revisiting small‐molecule fluorescent probes in food freshness detection
Smart Molecules, EarlyView.Fluorescent probes serve as versatile tools for food freshness monitoring. This review summarizes recent advances in probes targeting biogenic amines, hydrogen sulfide, pH values, and other key spoilage markers, highlighting their design principles, sensing mechanisms, and practical applications in food quality monitoring. Abstract Food spoilage driven
Xinrui Wang +5 more
wiley +1 more source
Orderly Microaggregates of G-/C-Rich Oligonucleotides Associated with Spermine
, 2016 Spermine-induced orderly assembling properties of G-/C-rich oligonucleotides are investigated in dilute and crowding conditions. The first time we report that the parallel G-quadruplexes is preferential to condense into anisotropic microaggregates in the
Ying Xiao (6517) +5 more
core +1 more source
Allergy, EarlyView.The European evidence‐based guidelines on eosinophilic esophagitis (Part 1). This infographic summarizes the methodological framework and core clinical outputs of the updated consensus developed by multidisciplinary experts from EUREOS, EAACI, ESPGHAN, and ESP.
Alfredo J. Lucendo +33 more
wiley +1 more source
British Journal of Pharmacology, EarlyView.Disruption of intracellular ionic homeostasis is a convergent pathological feature across diverse neurological injuries and disorders, including ischaemic and haemorrhagic stroke, hypoxic–ischaemic brain injury, traumatic brain injury, epilepsy and brain tumour.
Xinyang Zhang +5 more
wiley +1 more source
Ligand binding represses bacterial histidine kinase activity by inhibiting its dimerization
The FEBS Journal, EarlyView.PdtaS is a kinase in the pathogen Mycobacterium tuberculosis that senses copper and nitric oxide and controls virulence gene expression, but how the kinase senses these compounds was unclear. We show that PdtaS is active as a dimer with each monomer phosphorylating the other in trans.
Gaurav D. Sankhe +6 more
wiley +1 more source
Perturbation of spermine synthase Gene Expression and Transcript Profiling Provide New Insights on the Role of the Tetraamine Spermine in Arabidopsis Defense against Pseudomonas viridiflava1[C][W] [PDF]
, 2011 The role of the tetraamine spermine in plant defense against pathogens was investigated by using the Arabidopsis (Arabidopsis thaliana)-Pseudomonas viridiflava pathosystem.
María Elisa Gonzalez +23 more
core +1 more source
Ploidy‐dependent modulation of DNA replication kinetics in Xenopus
The FEBS Journal, EarlyView.Using an interspecies replication system with Xenopus frog species of different ploidy levels, we investigated how DNA replication adapts to polyploidization. While replication was slower in tetraploid than in diploid nuclei, dodecaploid nuclei unexpectedly replicated faster than tetraploid nuclei. Our findings show that increasing genome size does not
Hemalatha Narassimprakash +4 more
wiley +1 more source