Results 111 to 120 of about 63,423 (202)

Simultaneous quantitation of nicotinamide riboside, nicotinamide mononucleotide and nicotinamide adenine dinucleotide in milk by a novel enzyme-coupled assay

open access: yes, 2017
Nicotinamide riboside, the most recently discovered form of vitamin B3, and its phosphorylated form nicotinamide mononucleotide, have been shown to be potent supplements boosting intracellular nicotinamide adenine dinucleotide (NAD) levels, thus ...
ZAMPORLINI, FEDERICA   +7 more
core   +1 more source

Metabolic abnormalities and reprogramming in cats with naturally occurring hypertrophic cardiomyopathy

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 1256-1270, April 2025.
Abstract Background and aims The heart is a metabolic organ rich in mitochondria. The failing heart reprograms to utilize different energy substrates, which increase its oxygen consumption. These adaptive changes contribute to increased oxidative stress.
Qinghong Li   +12 more
wiley   +1 more source

Mortality risk stratification for Takotsubo syndrome: Evaluating CRP measurement alongside the InterTAK prognostic score

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 1427-1436, April 2025.
Abstract Background and objectives Initially described as a benign acute cardiomyopathy, Takotsubo syndrome has been linked to elevated mortality rates. Emerging evidence suggests that unresolved myocardial inflammation may contribute to this adverse prognosis.
Loïc Faucher   +12 more
wiley   +1 more source

Exploiting Biocatalysis for the Scalable Synthesis of Enantiopure γ‐Hydroxynitrile Building Blocks

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
Screening a panel of (S)‐and (R)‐selective alcohol dehydrogenases identified several biocatalysts for stereoselectively reducing γ‐ketonitriles into γ‐hydroxynitriles. These processes were optimized, delivering the targets in yields up to 88% with e.e.’s up to 99%. Scalability of the methodology was achieved to produce gram quantities of product, which
Benjamin Baumert   +7 more
wiley   +1 more source

FeIII‐Mediated Synthesis of Azaspirodienones via Ipso‐Radical Cyclization of Ugi–4CR Adducts

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
An efficient two‐step protocol for the synthesis of azaspirodienones via Fe‐mediated ipso‐radical cyclization of Ugi adducts has been developed. This methodology provides rapid access to these privileged spirocyclic architectures under mild conditions, offering a practical and versatile approach to generating structurally complex molecules with ...
Silvia J. Becerra–Anaya   +2 more
wiley   +1 more source

Progress report on new epilepsy treatments: A summary of the Eighteenth Eilat Conference on New Antiepileptic Drugs and Devices (EILAT XVIII). II. Treatments in more advanced clinical development

open access: yesEpilepsia, EarlyView.
Abstract This article summarizes data for 13 investigational treatments for which at least preliminary seizure outcome data in patients with epilepsy were reported at the Eighteenth Eilat Conference on New Antiepileptic Drugs and Devices held in Madrid, Spain, on May 3–6, 2026.
Meir Bialer   +7 more
wiley   +1 more source

Synthesis of Novel Nicotinamide Adenine Dinucleotide (NAD) Analogs and Their Coenzyme Activities

open access: yes, 2012
Four methods were tested to synthesize nicotinamide adenine dinucleotide (NAD) analogs, and 5 NAD analogs were prepared. Assays of these NAD analogs indicated that malic enzyme and alcohol dehydrogenase had about 13%similar to 30% enzymatic activity in ...
Hou Shuhua, Zhao Zongbao, Liu Wujun
core   +1 more source

Enzymatic activities affecting exogenous nicotinamide adenine dinucleotide in human skin fibroblasts

open access: yes, 1996
The fate of nicotinamide adenine dinucleotide (NAD), AMP, and ADP-ribose supplied to intact human skin fibroblasts was monitored, and the concentrations of intra- and extracellular pyridine and purine compounds were determined by HPLC analysis.
ALEO, Maria Francesca   +3 more
core   +1 more source

Bridging the Gap Between Human Toxicology and Ecotoxicology Under One Health Perspective by a Cross‐Species Adverse Outcome Pathway Network for Reproductive Toxicity

open access: yesEnvironmental Toxicology and Chemistry, EarlyView.
Cross‐species extrapolation of adverse outcome pathway network on reproductive toxicity under the One Health perspective using new approach methodologies. AOP = adverse outcome pathway. Abstract Although ecotoxicological and toxicological risk assessments are performed separately from each other, recent efforts have been made in both disciplines to ...
Elizabeth Dufourcq Sekatcheff   +2 more
wiley   +1 more source

Two-Step Synthesis of Novel, Bioactive Derivatives of the Ubiquitous Cofactor Nicotinamide Adenine Dinucleotide (NAD)

open access: yes, 2016
We report the design and concise synthesis, in two steps from commercially available material, of novel, bioactive derivatives of the enzyme cofactor nicotinamide adenine dinucleotide (NAD).
Julia Kempter (2196814)   +8 more
core   +1 more source

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