Results 41 to 50 of about 55,635 (283)

Alternaria in food: Ecophysiology, mycotoxin production and toxicology [PDF]

open access: yes, 2015
Alternaria species are common saprophytes or pathogens of a wide range of plants pre- and post-harvest. This review considers the relative importance of Alternaria species, their ecology, competitiveness, production of mycotoxins and the prevalence of ...
Lee, Hyang Burm   +2 more
core   +2 more sources

Silencing of NAMPT leads to up-regulation of insulin receptor substrate 1 gene expression in U87 glioma cells

open access: yesEndocrine Regulations, 2020
Objective. The aim of the present study was to investigate the effect of adipokine NAMPT (nicotinamide phosphoribosyltransferase) silencing on the expression of genes encoding IRS1 (insulin receptor substrate 1) and some other proliferation related ...
Tsymbal Daria O.   +5 more
doaj   +1 more source

NAD- and NADPH-Contributing Enzymes as Therapeutic Targets in Cancer: An Overview

open access: yesBiomolecules, 2020
Actively proliferating cancer cells require sufficient amount of NADH and NADPH for biogenesis and to protect cells from the detrimental effect of reactive oxygen species.
Alvinsyah Adhityo Pramono   +4 more
doaj   +1 more source

Crystal structure of hypoxanthine-guanine phosphoribosyltransferase [PDF]

open access: yes, 2007
\ud \ud \ud \ud Background\ud \ud Hypoxanthine-guanine phosphoribosyltransferase (HGPRT) (EC 2.4.2.8) is a central enzyme in the purine recycling pathway.
Monzani, Paulo S   +3 more
core   +1 more source

Recurrent 2,8-Dihydroxyadenine Crystalline Nephropathy in Renal Allograft

open access: yesAnnals of Internal Medicine: Clinical Cases
Adenine phosphoribosyltransferase deficiency is a rare cause of crystalline kidney disease. We present a case of end-stage kidney disease secondary to crystal deposition from adenine phosphoribosyltransferase deficiency with immediate recurrence of the ...
Farid Arman   +3 more
doaj   +1 more source

The Secreted Acid Phosphatase Domain-Containing GRA44 from Toxoplasma gondii Is Required for c-Myc Induction in Infected Cells. [PDF]

open access: yes, 2020
During host cell invasion, the eukaryotic pathogen Toxoplasma gondii forms a parasitophorous vacuole to safely reside within the cell, while it is partitioned from host cell defense mechanisms.
Arrizabalaga, Gustavo   +2 more
core   +2 more sources

NAD+ metabolism controls inflammation during senescence

open access: yesMolecular & Cellular Oncology, 2019
We have recently discovered that nicotinamide adenine dinucleotide metabolism controls the pro-inflammatory senescence-associated secretory phenotype during cellular senescence.
Timothy Nacarelli, Rugang Zhang
doaj   +1 more source

A New 3D Colon on a Chip to Decipher the Influence of Mechanical Forces on the Physiological Cellular Ecosystem

open access: yesAdvanced Healthcare Materials, EarlyView.
To dissect how mechanical forces influence intestinal physiology, we developed a stretchable 3D colon‐on‐chip that integrates tunable topography, stiffness and peristalsis‐like motion within a physiologically relevant microenvironment. We showed that stretching is a dominant factor governing epithelial behavior, markedly enhancing proliferation and ...
Moencopi Bernheim‐Dennery   +10 more
wiley   +1 more source

Enhancing the anticancer effect of NAMPT inhibition by targeting NAPRT in breast cancer cells

open access: yesAdvances in Cancer Biology - Metastasis
Introduction: Two pathways in the synthesis of NAD, catalyzed by the key enzymes nicotinamide phosphoribosyltransferase (NAMPT) and nicotinate phosphoribosyltransferase (NAPRT), support constant survival, growth, and propagation of cancer cells.
Zahra Gharedaghi   +6 more
doaj   +1 more source

Extracellular nicotinate phosphoribosyltransferase binds Toll like receptor 4 and mediates inflammation

open access: yesNature Communications, 2019
The enzyme nicotinate phosphoribosyltransferase (NAPRT) mediates the rate-limiting step in NAD salvage pathway starting from nicotinic acid. Here the authors show that NAPRT can be detected extracellularly, binds to Toll like receptor 4, and activates NF-
Antonella Managò   +16 more
doaj   +1 more source

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