Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
Lead Time
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Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Usage
For Research Use Only. Not for use in diagnostic or therapeutic procedures.
Catalyzes the condensation of nicotinamide with 5-phosphoribosyl-1-pyrophosphate to yield nicotinamide mononucleotide, an intermediate in the biosynthesis of NAD. It is the rate limiting component in the mammalian NAD biosynthesis pathway. The secreted form behaves both as a cytokine with immunomodulating properties and an adipokine with anti-diabetic properties, it has no enzymatic activity, partly because of lack of activation by ATP, which has a low level in extracellular space and plasma. Plays a role in the modulation of circadian clock function. NAMPT-dependent oscillatory production of NAD regulates oscillation of clock target gene expression by releasing the core clock component: CLOCK-ARNTL/BMAL1 heterodimer from NAD-dependent SIRT1-mediated suppression.
Gene References into Functions
A Strong association was observed among fasting blood glucose, serum visfatin and trace elements levels of high fat diet and type 2 diabetes mellitusPMID:29772226
Our findings suggest that NAMPT inhibition may be a novel therapeutic approach for I/R-induced lung injury. The protective effects involve the suppression of multiple signal pathways.PMID:28438162
Thus, it can be suggested that visfatin may play an important role in testicular aging by regulating testicular steroidogenesis and spermatogenesis.PMID:28163205
visfatin plays a dual role in the apoptosis in rat Mesenteric lymph nodes, which is mediated by both the mitochondrial apoptotic pathway and the death-receptor apoptotic pathway.PMID:26857566
this study shows that serum visfatin levels, and white adipose tissue and hepatic visfatin mRNA levels of both male and female rats were increased by LPS injectionPMID:27083000
Visfatin was expressed in the rats' retinas, mainly in the retinal nerve fibre layer, inner plexiform layer and outer plexiform layer. As the development of diabetes mellitus course, its expression was gradually increased.PMID:26694625
NAMPT protects against 6-hydroxydopamine-induced neurotoxicity in PC12 cells through modulating SIRT1 activityPMID:27035562
Report retinal toxicity of NAMPT inhibitors.PMID:25505128
visfatin could participate in the inflammatory process in rat spleen by modulating the macrophages and inflammatory cytokines.PMID:25358398
Visfatin induced the expression of alphaSMA in cultureactivated rat HSC, which was accompanied by a significant increase in collagen types I and III.PMID:25351242
These data are the first to show that Nampt inhibits myometrial contractility and does so more potently than leptin.PMID:25645057
Central visfatin improved glucose homeostasis by increasing insulin secretion and insulin sensitivity at euglycemia through the hypothalamus in diabetic rats.PMID:24332931
role in myocardial inflammation during endotoxemiaPMID:23831038
Data indicate that nicotinamide phosphoribosyltransferase (NAMPT) mRNA and protein were increased in the kidneys with streptozotocin-induced diabetes.PMID:24287278
CR-induced beneficial effects in oxidative stress, mitochondrial biogenesis, and metabolic adaptation require NAMPT.PMID:23946338
visfatin plays a critical role in cardioprotection by suppressing myocardial apoptosis via AMPK activationPMID:23065734
Nampt promotes neuronal survival through inducing autophagy.PMID:22113203
Visfatin expression was increased mainly through the AT1-R-JAK/STAT pathway in the process of Ang II-induced cardiomyocyte hypertrophy.PMID:21841463
The expression of visfatin is closely associated with the expression of proinflammatory cytokines in FFA-induced inflammation and is significantly decreased by NF-kappaB inhibition in HepG2 cells.PMID:21664630
Our findings reveal that Nampt protects against ischemic stroke through rescuing neurons from death via the SIRT1-dependent AMPK pathway and indicate that Nampt is a new therapeutic target for stroke.PMID:21246601
results of the present study demonstrate that serum visfatin levels in Lyon hypertensive rats are elevated and are associated with lipid metabolic abnormalitiesPMID:20456420
No differences of serum visfatin levels were observed between spontaneously hypertensive rats and Wistar-Kyoto rats. Serum visfatin levels were significantly correlated to weights of skeletal muscle.PMID:20658215
Visfatin exhibits important autocrine effects on sensitivity of liver cells to insulin action possibly through its effects on NAD biosynthesis.PMID:19929131
Exercise training induced SIRT1 activity due to the positive effect of exercise on the activity of nicotinamide phosphoribosyltransferase (NAMPT) and thereby the production of sirtuin-fueling NAD(+).PMID:19913571
PBEF is not a cytokine-like secreted protein but an intracellular protein associated with the cell cyclePMID:12782293
relative visfatin gene expression is not associated with the metabolic syndrome in WOKW rats [Pbef, also called visfatin]PMID:15922301
Results describe the crystal structure of visfatin in three different forms: apo and in complex with either nicotinamide mononucleotide (NMN) or the nicotinamide phosphoribosyltransferase inhibitor FK-866.PMID:16901503
During fasting, increased Nampt provides protection against cell death and requires an intact mitochondrial NAD(+) salvage pathway as well as the mitochondrial NAD(+)-dependent deacetylases SIRT3 and SIRT4.PMID:17889652
Visfatin is produced in mesangial cells, which are a novel target for visfatin, and play an important role in the pathogenesis of diabetic nephropathy.PMID:18768589
improves insulin sensitivity and exerts its hypocholesterolemic effects at least partially through upregulation of the tyrosine phosphorylation of IRS-1 protein and the mRNA levels of PPARgamma and SREBP-2PMID:19263259
The crystal structure of rat visfatin in complex with IS001, is desribed.PMID:19533035
Nicotinamide phosphoribosyltransferase regulates cell survival through NAD+ synthesis in cardiac myocytes.PMID:19661458
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Subcellular Location
Nucleus. Cytoplasm. Secreted.
Protein Families
NAPRTase family
Tissue Specificity
Expressed in various tissues. At the highest level in liver and at the second highest in heart. The amount is higher in heart than in lung.