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Showing 1-30 of 222 results for "n5755" within Papers
Ana Sánchez-Azqueta et al.
Biochimica et biophysica acta, 1837(10), 1730-1738 (2014-06-24)
Kinetic isotope effects in reactions involving hydride transfer and their temperature dependence are powerful tools to explore dynamics of enzyme catalytic sites. In plant-type ferredoxin-NADP(+) reductases the FAD cofactor exchanges a hydride with the NADP(H) coenzyme. Rates for these processes
Satoshi Endo et al.
Biochemical pharmacology, 86(9), 1366-1375 (2013-09-03)
3-Hydroxyhexobarbital dehydrogenase (3HBD) catalyzes NAD(P)⁺-linked oxidation of 3-hydroxyhexobarbital into 3-oxohexobarbital. The enzyme has been thought to act as a dehydrogenase for xenobiotic alcohols and some hydroxysteroids, but its physiological function remains unknown. We have purified rabbit 3HBD, isolated its cDNA
Grant R Drummond et al.
Nature reviews. Drug discovery, 10(6), 453-471 (2011-06-02)
NADPH oxidases are a family of enzymes that generate reactive oxygen species (ROS). The NOX1 (NADPH oxidase 1) and NOX2 oxidases are the major sources of ROS in the artery wall in conditions such as hypertension, hypercholesterolaemia, diabetes and ageing
Haiyang Xu et al.
Current biology : CB, 27(13), 1867-1877 (2017-06-20)
Sexually deceptive orchids lure their specific male pollinators using volatile semiochemicals that mimic female sex pheromones. To date, the semiochemicals known to be involved consist of blends of chemically and biosynthetically related compounds. In contrast, we report that (S)-β-citronellol and
Wei Liu et al.
PloS one, 10(4), e0122366-e0122366 (2015-04-08)
Vasicine (VAS), a potential natural cholinesterase inhibitor, exhibited promising anticholinesterase activity in preclinical models and has been in development for treatment of Alzheimer's disease. This study systematically investigated the in vitro and in vivo metabolism of VAS in rat using
Da-Sheng Zhang et al.
Toxicology letters, 225(1), 119-129 (2013-12-05)
Although sanguinarine (SANG) can be transformed to dihydrosanguinarine (DHSA) in human and animals, the enzyme involved in the imine bond reduction of SANG is still unknown. In this study, we found that rat quinone oxidoreductase 1 expressed by prokaryotic system
S K Hasan et al.
Human & experimental toxicology, 34(6), 628-641 (2014-10-30)
2-Acetylaminofluorene (2-AAF) is a known hepatic carcinogen which leads to tumour formation in rodents. 18-β Glycyrrhetinic acid (18β-GA) derived from liquorice plant has various pharmacological properties such as anti-ulcer, anti-inflammatory, antiviral, hepatoprotective and antioxidant. This study is designed to elucidate
Tongya Yu et al.
Xenobiotica; the fate of foreign compounds in biological systems, 44(10), 861-867 (2014-05-02)
1. In this article, the modulatory effects of extracts from vinegar-baked Radix Bupleuri (VBRB) and saikosaponins on the activity of CYP1A2, CYP2C9 and CYP3A4 were investigated in vitro. 2. Microsomal in vitro incubation method was utilized to simulate metabolic reaction
Astrid Milić et al.
European journal of drug metabolism and pharmacokinetics, 39(4), 263-276 (2013-10-12)
The purpose of this study was to evaluate the impact of structural modifications on the 15-membered macrolactone ring and/or substituents on the in vitro ADME properties and in vivo pharmacokinetic (PK) profile for selected derivatives in rodents in comparison to
Nayeli Torres-Ramírez et al.
Life sciences, 93(25-26), 975-985 (2013-11-05)
Excessive energy uptake of dietary carbohydrates results in their storage as fat and requires glucose-6-phosphate dehydrogenase (G6PD)-mediated NADPH production. We sought to assess whether the nicotinamide-induced reduction of G6PD activity might modulate redox balance and lipid accumulation in 3T3-L1 cells.
Brett A Beaupre et al.
Biochemistry, 52(49), 8929-8937 (2013-11-26)
Renalase is a recently discovered flavoprotein that has been reported to be a hormone produced by the kidney to down-modulate blood pressure and heart rate. The consensus belief has been that renalase oxidizes circulating catecholamine neurotransmitters thereby attenuating vascular tone.
Raoul G Rosenthal et al.
Nature chemical biology, 10(1), 50-55 (2013-11-19)
The pyridine nucleotides NADH and NADPH (NAD(P)H) are ubiquitous redox coenzymes that are present in all living cells. Although about 16% of all characterized enzymes use pyridine nucleotides as hydride donors or acceptors during catalysis, a detailed understanding of how
A A Sánchez-Tusie et al.
Biochemical and biophysical research communications, 443(2), 531-536 (2013-12-12)
Ca(2+) signaling in spermatozoa plays a crucial role during processes such as capacitation and release of the acrosome, but the underlying molecular mechanisms still remain unclear. Nicotinic acid adenine dinucleotide phosphate (NAADP) is a potent Ca(2+)-releasing second messenger in a
K Oizel et al.
Cell death & disease, 6, e1704-e1704 (2015-03-27)
Somatic mutations in isocitrate dehydrogenase (IDH)-1 and -2 have recently been described in glioma. This mutation leads to a neomorphic enzymatic activity as the conversion of isocitrate to alpha ketoglutarate (αKG) is replaced by the conversion of αKG to D-2-hydroxyglutarate
David S Paek et al.
Reproductive sciences (Thousand Oaks, Calif.), 22(2), 207-222 (2014-06-12)
Maternal food restriction (MFR) causes intrauterine growth restriction, a known risk factor for developing chronic lung disease. However, it is unknown whether this negative outcome is gender specific or preventable by blocking the MFR-induced hyperglucocorticoidism. Using a well-established rat model
Iswar Baitharu et al.
PloS one, 9(10), e105311-e105311 (2014-10-14)
Withania somnifera root extract has been used traditionally in ayurvedic system of medicine as a memory enhancer. Present study explores the ameliorative effect of withanolide A, a major component of withania root extract and its molecular mechanism against hypoxia induced
Ru Feng et al.
Scientific reports, 5, 12155-12155 (2015-07-16)
The gut microbiota is important in the pathogenesis of energy-metabolism related diseases. We focused on the interaction between intestinal bacteria and orally administered chemical drugs. Oral administration of berberine (BBR) effectively treats patients with metabolic disorders. However, because BBR exhibits
Venugopal R Bovilla et al.
Biomedicines, 9(9) (2021-09-29)
Nuclear factor erythroid-2 related factor-2 (Nrf2) is an oxidative stress-response transcriptional activator that promotes carcinogenesis through metabolic reprogramming, tumor promoting inflammation, and therapeutic resistance. However, the extension of Nrf2 expression and its involvement in regulation of breast cancer (BC) responses
Erin A Peden et al.
The Journal of biological chemistry, 288(49), 35192-35209 (2013-10-09)
Ferredoxins (FDXs) can distribute electrons originating from photosynthetic water oxidation, fermentation, and other reductant-generating pathways to specific redox enzymes in different organisms. The six FDXs identified in Chlamydomonas reinhardtii are not fully characterized in terms of their biological function. In
Ramon Lavado et al.
Toxicology letters, 226(2), 192-197 (2014-02-20)
Permethrin (PM) is a pyrethroid insecticide that exists as 4 enantiomers. Biotransformation of PM to estrogen receptor agonists (3-phenoxybenzyl alcohol (PBOH) and 3-(4'-hydroxyphenoxy)-benzyl alcohol (3,4 PBOH)) has been shown to be stereoselective in other vertebrate species. This study evaluated the
Yi-Fan Xu et al.
Molecular systems biology, 9, 665-665 (2013-05-15)
Nucleotide degradation is a universal metabolic capability. Here we combine metabolomics, genetics and biochemistry to characterize the yeast pathway. Nutrient starvation, via PKA, AMPK/SNF1, and TOR, triggers autophagic breakdown of ribosomes into nucleotides. A protein not previously associated with nucleotide
Dean Fraga et al.
Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology, 187, 85-101 (2015-05-20)
Phosphagen kinases (PKs) are well-studied enzymes involved in energy homeostasis in a wide range of animal, protozoan, and even some bacterial species. Recent genome efforts have allowed comparative work on the PKs to extend beyond the biochemistry of individual proteins
Bent H Hellum et al.
Basic & clinical pharmacology & toxicology, 101(5), 350-358 (2007-10-04)
The six commonly used trade herbal products, St. John's wort, common valerian, common sage, Ginkgo biloba, Echinacea purpurea and horse chestnut, and ethanol, were investigated for their in vitro inhibitory potential of cytochrome P450 2D6 (CYP2D6)-mediated metabolism. Herbal components were
Andreas H Guse
The Biochemical journal, 453(1), e1-e2 (2013-06-15)
NAADP (nicotinic acid-adenine dinucleotide phosphate) is the most potent Ca2+-releasing second messenger known to date. Since its discovery in 1995 identifying the NAADP receptor protein/Ca2+ channel has been a major persuit of the Ca2+ signalling community. In their paper 'The
Julius K Demmer et al.
The Journal of biological chemistry, 290(36), 21985-21995 (2015-07-04)
NADH-dependent reduced ferredoxin:NADP oxidoreductase (NfnAB) is found in the cytoplasm of various anaerobic bacteria and archaea. The enzyme reversibly catalyzes the endergonic reduction of ferredoxin with NADPH driven by the exergonic transhydrogenation from NADPH onto NAD(+). Coupling is most probably
Yin Wang et al.
Molecular neurobiology, 48(1), 49-61 (2013-04-03)
Glycogen, the largest cytosolic macromolecule, is soluble because of intricate construction generating perfect hydrophilic-surfaced spheres. Little is known about neuronal glycogen function and metabolism, though progress is accruing through the neurodegenerative epilepsy Lafora disease (LD) proteins laforin and malin. Neurons
María Apellániz-Ruiz et al.
Clinical cancer research : an official journal of the American Association for Cancer Research, 21(2), 322-328 (2014-11-16)
Paclitaxel, a widely used chemotherapeutic drug, can cause peripheral neuropathies leading to dose reductions and treatment suspensions and decreasing the quality of life of patients. It has been suggested that genetic variants altering paclitaxel pharmacokinetics increase neuropathy risk, but the
Jocelyn Kauny et al.
Biochimica et biophysica acta, 1837(6), 792-801 (2014-01-28)
We measured the kinetics of light-induced NADPH formation and subsequent dark consumption by monitoring in vivo its fluorescence in the cyanobacterium Synechocystis PCC 6803. Spectral data allowed the signal changes to be attributed to NAD(P)H and signal linearity vs the
Alexandra Jammer et al.
Journal of experimental botany, 66(18), 5531-5542 (2015-05-24)
The analysis of physiological parameters is important to understand the link between plant phenotypes and their genetic bases, and therefore is needed as an important element in the analysis of model and crop plants. The activities of enzymes involved in
Zhe-Yi Hu et al.
Rapid communications in mass spectrometry : RCM, 28(11), 1285-1292 (2014-04-25)
Clopidogrel (CLO) is a prodrug used to prevent ischemic events in patients undergoing percutaneous coronary intervention or with myocardial infarction. A previous study found ethyl clopidogrel (ECLO) is formed by transesterification of CLO when incubated with alcohol in human liver
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