Results 11 to 20 of about 1,346 (113)

PACSIN2 as a modulator of autophagy and mercaptopurine cytotoxicity: mechanisms in lymphoid and intestinal cells. [PDF]

open access: yesLife Sci Alliance, 2023
PACSIN2 variants are associated with gastrointestinal effects of thiopurines and thiopurine methyltransferase activity through an uncharacterized mechanism that is postulated to involve auto-phagy.
Zudeh G   +10 more
europepmc   +3 more sources

Impact of mercaptopurine metabolites on disease outcome in the AIEOP-BFM 2009 protocol for acute lymphoblastic leukemia [PDF]

open access: yes, 2023
: In the maintenance phase of AIEOP-BFM acute lymphoblastic leukemia (ALL) 2009 protocol, mercaptopurine (MP) is given at the planned dose of 50 mg/m2/day; however, dose adjustments are routinely performed to target patients' white blood cells to the ...
Bertorello, Nicoletta   +16 more
core   +1 more source

Pharmacokinetics and pharmacodynamics of thiopurines in an in\ua0vitro model of human hepatocytes: Insights from an innovative mass spectrometry assay [PDF]

open access: yes, 2017
AIM: To apply an innovative LC-MS/MS method to quantify thiopurine metabolites in human hepatocytes and to associate them to cytotoxicity. METHODS: Immortalized human hepatocytes (IHH cells) were treated for 48 and 96 h, with 1.4 7 10-4 M azathioprine ...
Decorti, Giuliana   +12 more
core   +1 more source

Extent of metal ion-sulfur binding in complexes of thiouracil nucleosides and nucleotides in aqueous solution [PDF]

open access: yes, 2007
医薬保健研究域 薬学系Previously published stability constants of several metal ion (M2+) complexes formed with thiouridines and their 5′-monophosphates, together with recently obtained log KM (U)M versus p KUH plots for M2+ complexes of uridinate derivatives (U ...
小谷 明
core   +2 more sources

The RNA-Induced Silencing Complex Is a Mg2+-Dependent Endonuclease [PDF]

open access: yes, 2004
In the Drosophila and mammalian RNA interference (RNAi) pathways, target RNA destruction is catalyzed by the siRNA-guided, RNA-induced silencing complex (RISC).
Schwarz, Dianne S   +2 more
core   +1 more source

American Gastroenterological Association Institute Technical Review on the Role of Therapeutic Drug Monitoring in the Management of Inflammatory Bowel Diseases [PDF]

open access: yes, 2017
Therapeutic drug monitoring (TDM), which involves measurement of drug or active metabolite levels and anti-drug antibodies, is a promising strategy that can be used to optimize inflammatory bowel disease therapeutics.
Falck-Ytter, Yngve   +4 more
core   +2 more sources

Human topoisomerase IIα uses a two-metal-ion mechanism for DNA cleavage [PDF]

open access: yes, 2008
The DNA cleavage reaction of human topoisomerase IIα is critical to all of the physiological and pharmacological functions of the protein. While it has long been known that the type II enzyme requires a divalent metal ion in order to cleave DNA, the role
A. B. Burgin   +35 more
core   +2 more sources

Use of divalent metal ions in the DNA cleavage reaction of topoisomerase IV [PDF]

open access: yes, 2011
It has long been known that type II topoisomerases require divalent metal ions in order to cleave DNA. Kinetic, mutagenesis and structural studies indicate that the eukaryotic enzymes utilize a novel variant of the canonical two-metal-ion mechanism to ...
A. B. Burgin   +40 more
core   +3 more sources

Spatial and temporal Ca2+, Mg2+, and ATP2− dynamics in cardiac dyads during calcium release [PDF]

open access: yes, 2007
We have constructed a three-dimensional reaction-diffusion model of the mammalian cardiac calcium release unit. We analyzed effects of diffusion coefficients, single channel current amplitude, density of RyR channels, and reaction kinetics of ATP2− with ...
Pavelková, Jana   +3 more
core   +1 more source

Metabolic reconstruction of sulfur assimilation in the extremophile Acidithiobacillus ferrooxidans based on genome analysis [PDF]

open access: yes, 2003
BACKGROUND: Acidithiobacillus ferrooxidans is a gamma-proteobacterium that lives at pH2 and obtains energy by the oxidation of sulfur and iron. It is used in the biomining industry for the recovery of metals and is one of the causative agents of acid ...
A Bateman   +63 more
core   +2 more sources

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