Results 91 to 100 of about 106,501 (287)
Nicotinamide Reverses the Warburg Effect in CHO Cell Culture
Biotechnology and Bioengineering, EarlyView.Abstract The Warburg effect, the preferential conversion of glucose‐derived pyruvat to lactate despite available oxygen, is a key feature of Chinese hamster ovary (CHO) cell culture. Lactate accumulation in recombinant protein‐producing cell culture is an inefficient usage of glucose, as well as being deleterious to cells.
James Morrissey +7 more
wiley +1 more source
Pyridine Metabolism and Trigonelline Synthesis in Leaves of the Mangrove Legume trees ) and
Natural Product Communications, 2011 The aim of this study was to reveal the pyridine metabolism in leaves of two mangrove legumes, Derris indica (= Millettia pinnata or Pongamia pinnata ) and Caesalpinia crista.
Yuling Yin +2 more
doaj +1 more source
Czech Journal of Food Sciences, 2009 Besides caffeine, the betaine N-methyl nicotinic acid, also known as trigonelline, is commonly reported as the second most abundant alkaloid in raw coffee beans.
R. Lang, T. Hofmann
doaj +1 more source
Bulletin of the Korean Chemical Society, EarlyView.Dried blood spot (DBS) analysis enables minimally invasive blood collection with strong analyte stability and simplified logistics, supporting anti‐doping applications beyond traditional matrices. Recent advances address hematocrit, volume variability, and matrix effects while expanding coverage to steroid esters, World Anti‐Doping Agency‐listed ...
Jihyun Yoon +4 more
wiley +1 more source
Pyridine nucleotide synthesis by rat adipose tissue in vitro
Journal of Lipid Research, 1967 The synthesis of NAD and NADP by rat adipose tissue was measured in vitro. Nicotinamide-7-14C and NaH232PO4 were incorporated together into NAD with a 32P/14C ratio of 1.82 and nicotinic-7-14C acid and NaH232PO4 with a ratio of 1.94.
Richard W. Hanson, Zigmund Z. Ziporin
doaj +1 more source
Age-related increase of kynurenic acid in human cerebrospinal fluid-IgG and beta(2)-microglobulin changes [PDF]
, 2005 Kynurenic acid (KYNA) is an endogenous metabolite in the kynurenine pathway of tryptophan degradation and is an antagonist at the glycine site of the N-methyl-D-aspartate as well as at the alpha 7 nicotinic cholinergic receptors. In the brain tissue KYNA
Baran, H +5 more
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Bioenhancer‐Driven Modulation of Membrane Dynamics Improves B‐Vitamin Uptake in Caco‐2 Cells
ChemFoodChem, EarlyView.Natural bioenhancers such as extracts from ginger, turmeric, black pepper, and spearmint increase the uptake of vitamins B1, B5, B6, and B7 in Caco‐2 cells. Micellized formulations further increase efficacy. These findings indicate that altered membrane fluidity contributes to enhanced cellular absorption, providing a new route to improve vitamin B ...
Verena Preinfalk +9 more
wiley +1 more source
Structurally similar allosteric modulators of α7 nicotinic acetylcholine receptors exhibit five distinct pharmacological effects. [PDF]
, 2015 Activation of nicotinic acetylcholine receptors (nAChRs) is associated with the binding of agonists such as acetylcholine to an extracellular site that is located at the interface between two adjacent receptor subunits.
D'Oyley, JM +4 more
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Clinical Pharmacology &Therapeutics, EarlyView.Cinnamon (Cinnamomum spp.) is used as a culinary spice and dietary supplement. A major constituent, cinnamaldehyde, was previously shown to inactivate cytochrome P450 (CYP) 2A6 in vitro. A mechanistic static model predicted an ~5‐fold increase in the AUC of the CYP2A6 substrates nicotine and letrozole.
Aiden‐Hung P. Nguyen +8 more
wiley +1 more source
Mutations in M2 alter the selectivity of the mouse nicotinic acetylcholine receptor for organic and alkali metal cations [PDF]
, 1992 We measured the permeability ratios (PX/PNa) of 3 wild-type, 1 hybrid, 2 subunit-deficient, and 22 mutant nicotinic receptors expressed in Xenopus oocytes for alkali metal and organic cations using shifts in the bi-ionic reversal potential of the ...
Cohen, Bruce N. +3 more
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