نتایج جستجو برای: nampt

تعداد نتایج: 794  

Journal: :Pigment cell & melanoma research 2015
Ambra A Grolla Simone Torretta Ilaria Gnemmi Angela Amoruso Giuseppe Orsomando Marco Gatti Antonio Caldarelli Dmitry Lim Lorenza Penengo Sandra Brunelleschi Armando A Genazzani Cristina Travelli

High plasma levels of nicotinamide phosphoribosyltransferase (NAMPT), traditionally considered an intracellular enzyme with a key role in NAD synthesis, have been reported in several oncological, inflammatory and metabolic diseases. We now show that eNAMPT can be actively released by melanoma cells in vitro. We analysed the mechanisms of its release, and we found both classical and non-classica...

Journal: :Development 2009
Tracy L Vrablik Li Huang Stephanie E Lange Wendy Hanna-Rose

Nicotinamide adenine dinucleotide (NAD(+)) is a central molecule in cellular metabolism and an obligate co-substrate for NAD(+)-consuming enzymes, which regulate key biological processes such as longevity and stress responses. Although NAD(+) biosynthesis has been intensely studied, little analysis has been done in developmental models. We have uncovered novel developmental roles for a nicotina...

Journal: :Neuro-oncology 2022

Abstract Telomere maintenance is a fundamental hallmark of cancer. Most tumors maintain telomere length via reactivation telomerase reverse transcriptase (TERT) expression. Identifying imaging biomarkers TERT can enable non-invasive assessment tumor proliferation and response to therapy. Deuterium magnetic resonance spectroscopy (DMRS) following administration 2H-labeled substrates recently eme...

2016
Jan Hansen Silvie Timmers Esther Moonen-Kornips Helene Duez Bart Staels Matthijs K. C. Hesselink Patrick Schrauwen

Cell and animal studies have demonstrated that circadian rhythm is governed by autonomous rhythmicity of clock genes. Although disturbances in circadian rhythm have been implicated in metabolic disease development, it remains unknown whether muscle circadian rhythm is altered in human models of type 2 diabetes. Here we used human primary myotubes (HPM) to investigate if rhythmicity of clock- an...

2014
Gesine Flehmig Markus Scholz Nora Klöting Mathias Fasshauer Anke Tönjes Michael Stumvoll Byung-Soo Youn Matthias Blüher

In obesity, elevated fat mass and ectopic fat accumulation are associated with changes in adipokine secretion, which may link obesity to inflammation and the development of insulin resistance. However, relationships among individual adipokines and between adipokines and parameters of obesity, glucose metabolism or inflammation are largely unknown. Serum concentrations of 20 adipokines were meas...

2013
João Carneiro Sara Duarte-Pereira Luísa Azevedo L. Filipe C. Castro Paulo Aguiar Irina S. Moreira António Amorim Raquel M. Silva

Nicotinamide Adenine Dinucleotide (NAD) levels are essential for cellular homeostasis and survival. Main sources of intracellular NAD are the salvage pathways from nicotinamide, where Nicotinamide phosphoribosyltransferases (NAMPTs) and Nicotinamidases (PNCs) have a key role. NAMPTs and PNCs are important in aging, infection and disease conditions such as diabetes and cancer. These enzymes have...

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