Results 31 to 40 of about 139,842 (299)

Nutraceutical activation of Sirt1: a review

open access: yesOpen Heart, 2022
The deacetylase sirtuin 1 (Sirt1), activated by calorie restriction and fasting, exerts several complementary effects on cellular function that are favourable to healthspan; it is often thought of as an ‘anti-aging’ enzyme. Practical measures which might
James J DiNicolantonio   +2 more
doaj   +1 more source

NAD Kinase in Higher Plants [PDF]

open access: yesPlant Physiology, 1966
NAD kinase was exclusively found in the soluble portion of the cell components. The enzyme was purified about 100-fold from sucrose extracts of spinach leaves.Plant NAD kinase catalyzes formation of NADP from NAD, ATP, and Mg(++), but scarcely any formation of NADPH from NADH. NADH was a very potent competitive inhibitor of NAD phosphorylation by plant
openaire   +2 more sources

Roles of ion channels in immune cells [PDF]

open access: yes, 2016
The Editorial on the Research Topic - Roles of Ion Channels in Immune ...
Amanda eMacKenzie   +5 more
core   +3 more sources

The CreC regulator of Escherichia coli, a new target for metabolic manipulations [PDF]

open access: yes, 2015
The CreBC (carbon source-responsive) two-component regulation system of Escherichia coli affects a number of functions, including intermediary carbon catabolism.
Cabrera Gomez, José Gregorio   +3 more
core   +1 more source

From meadows to milk to mucosa – adaptation of Streptococcus and Lactococcus species to their nutritional environments [PDF]

open access: yes, 2011
Lactic acid bacteria (LAB) are indigenous to food-related habitats as well as associated with the mucosal surfaces of animals. The LAB family Streptococcaceae consists of the genera Lactococcus and Streptococcus.
Adab, P.   +12 more
core   +8 more sources

Endogenous nicotinamide riboside metabolism protects against diet-induced liver damage

open access: yesNature Communications, 2019
Nicotinamide adenine dinucleotide (NAD+) sustains cellular energy metabolism, functions as a substrate of Sirt and PARP enzymes, and its supplementation is explored therapeutically in aging and other contexts.
Audrey Sambeat   +12 more
doaj   +1 more source

The Human G Protein-Coupled ATP Receptor P2Y11 Is Associated With IL-10 Driven Macrophage Differentiation

open access: yesFrontiers in Immunology, 2019
The G protein-coupled P2Y11 receptor is known to sense extracellular ATP during inflammatory and immune responses. The dinucleotide NAD+ has also been proposed to be a P2Y11 receptor ligand but its role is less clear. Here, we have examined for the first
Georg Gruenbacher   +7 more
doaj   +1 more source

Genome-wide analysis of the UDP-glucose dehydrogenase gene family in Arabidopsis, a key enzyme for matrix polysaccharides in cell walls [PDF]

open access: yes, 2007
Arabidopsis cell walls contain large amounts of pectins and hemicelluloses, which are predominantly synthesized via the common precursor UDP-glucuronic acid.
Klinghammer, Michaela, Tenhaken, Raimund
core   +1 more source

Stereoisomer-specific ginsenoside 20(S)-Rg3 reverses replicative senescence of human diploid fibroblasts via Akt-mTOR-Sirtuin signaling

open access: yesJournal of Ginseng Research, 2020
Background: The replicative senescence of human dermal fibroblasts (HDFs) is accompanied by growth arrest. In our previous study, the treatment of senescent HDFs with Rg3(S) lowered the intrinsic reactive oxygen species (ROS) levels and reversed cellular
Kyeong-Eun Yang   +7 more
doaj   +1 more source

Human peritoneal mesothelial cell death induced by high-glucose hypertonic solution involves Ca2+ and Na+ ions and oxidative stress with the participation of PKC/NOX2 and PI3K/Akt pathways [PDF]

open access: yes, 2017
Indexación: Web of Science; Scopus.Chronic peritoneal dialysis (PD) therapy is equally efficient as hemodialysis while providing greater patient comfort and mobility. Therefore, PD is the treatment of choice for several types of renal patients. During PD,
Alejandro Pacheco   +13 more
core   +2 more sources

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