Results 31 to 40 of about 71,648 (238)

Impaired nicotinamide adenine dinucleotide (NAD+) metabolism in diabetes and diabetic tissues: Implications for nicotinamide‐related compound treatment

open access: yesJournal of Diabetes Investigation, 2020
One of the biochemical abnormalities found in diabetic tissues is a decrease in the cytosolic oxidized to reduced forms of the nicotinamide adenine dinucleotide ratio (NAD+/NADH also known as pseudohypoxia) caused by oxidation of excessive substrates ...
Lan Fan, Jose M. Cacicedo, Yasuo Ido
doaj   +1 more source

Activation of Akt by advanced glycation end products (AGEs): involvement of IGF-1 receptor and caveolin-1. [PDF]

open access: yesPLoS ONE, 2013
Diabetes is characterized by chronic hyperglycemia, which in turn facilitates the formation of advanced glycation end products (AGEs). AGEs activate signaling proteins such as Src, Akt and ERK1/2.
Su-Jung Yang   +7 more
doaj   +1 more source

MNADK, a novel liver-enriched mitochondrion-localized NAD kinase

open access: yesBiology Open, 2013
Summary NADP+ and its reducing equivalent NADPH are essential for counteracting oxidative damage. Mitochondria are the major source of oxidative stress, since the majority of superoxide is generated from the mitochondrial respiratory chain. Because NADP+
Ren Zhang
doaj   +1 more source

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

The effector AvrRxo1 phosphorylates NAD in planta. [PDF]

open access: yesPLoS Pathogens, 2017
Gram-negative bacterial pathogens of plants and animals employ type III secreted effectors to suppress innate immunity. Most characterized effectors work through modification of host proteins or transcriptional regulators, although a few are known to ...
Teja Shidore   +7 more
doaj   +1 more source

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

Extracellular Nicotinamide Phosphoribosyltransferase Is a Component of the Senescence-Associated Secretory Phenotype

open access: yesFrontiers in Endocrinology, 2022
Cellular senescence is a stress or damage response by which a cell adopts of state of essentially permanent proliferative arrest, coupled to the secretion of a number of biologically active molecules. This senescence-associated secretory phenotype (SASP)
Chisaka Kuehnemann   +8 more
doaj   +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

Cisplatin-Induced Kidney Toxicity: Potential Roles of Major NAD+-Dependent Enzymes and Plant-Derived Natural Products

open access: yesBiomolecules, 2022
Cisplatin is an FDA approved anti-cancer drug that is widely used for the treatment of a variety of solid tumors. However, the severe adverse effects of cisplatin, particularly kidney toxicity, restrict its clinical and medication applications. The major
Amany Iskander, Liang-Jun Yan
doaj   +1 more source

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