Abstract:
:The effect of N'-nitrosonornicotine (NNN), one of the tobacco-specific nitrosamines, on the catalytic activity of glutamate dehydrogenase (GLDH) in the alpha-ketoglutarate amination, using reduced nicotinamide adenine dinucleotide as coenzyme, was studied by a chronoamperometric method. The maximum reaction rate of the enzyme-catalyzed reaction and the Michaelis-Menten constant, or the apparent Michaelis-Menten constant, were determined in the absence and presence of NNN. NNN remarkably inhibited the bio-catalysis activity of GLDH, and was a reversible competitive inhibitior with K(i), estimated as 199 micromol l(-1) at 25 degrees C and pH 8.0.
journal_name
J Enzyme Inhib Med Chemjournal_title
Journal of enzyme inhibition and medicinal chemistryauthors
Mao YA,Zhong KJ,Wei WZ,Wei XL,Lu HBdoi
10.1080/14756360410001733702keywords:
subject
Has Abstractpub_date
2005-02-01 00:00:00pages
89-94issue
1eissn
1475-6366issn
1475-6374journal_volume
20pub_type
杂志文章abstract:UNLABELLED:Abstract In biological systems, the Keap1/Nrf2/antioxidant response element pathway determines the ability of mammalian cells to adapt and survive conditions of oxidative, electrophilic and inflammatory stress by regulating the production of cytoprotective enzymes NAD(P)H:quinone oxidoreductase 1 (NQO1, EC ...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.3109/14756366.2013.858146
更新日期:2014-12-01 00:00:00
abstract::In a new group of 3-methyl-2-phenyl-1-substituted-indole derivatives (10a-f), the indomethacin analogs were prepared via the Fisher indole synthesis reaction of propiophenone with appropriately substituted phenylhydrazine hydrochloride. This is followed by the insertion of the appropriate benzyl or benzoyl fragment. A...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.3109/14756366.2015.1022174
更新日期:2016-01-01 00:00:00
abstract::A revisited synthesis of 2-aryl-6-methyl-1,2-dihydro-1H-pyridin-4-ones and their saturated analogues 2-aryl-6-methylpiperidin-4-ols is described. A five steps procedure, using the sulfinimine chemistry, to prepare a key intermediate beta-(6-chloronicotinic)-beta-amino ester is also reported. In vivo spontaneous workin...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.1080/14756360500212266
更新日期:2005-12-01 00:00:00
abstract::From the aerial parts of Thymus sibthorpii Bentham (Lamiaceae), five flavonoids apigenin (1), 7-methoxy-apigenin (2), naringenin (3), eriodictyol (4) and eriodictyol-7-glucoside (5), have been isolated together with caffeic acid methyl ester (6), rosmarinic acid (7) and rosmarinic acid methyl ester (8). The structures...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.1080/14756366.2016.1222583
更新日期:2016-01-01 00:00:00
abstract::In this study, 5-chloro-3H-spiro-[1,3-benzothiazole-2,3'-indole]-2'(1'H)-one derivatives 3a-l were synthesized by the reaction of 1H-indole-2,3-diones 1a-l with 2-amino-4-chlorothiophenol 2 in ethanol. 3a-l were tested for their abilities to inhibit lipid peroxidation (LP), scavenge DPPH(•) and ABTS(•+) radicals, and ...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.3109/14756366.2013.800058
更新日期:2014-08-01 00:00:00
abstract::We investigated the ability of polyphenol fatty acid esters to inhibit the activity of serine proteases trypsin, thrombin, elastase and urokinase. Potent protease inhibition in micromolar range was displayed by rutin and rutin derivatives esterified with medium and long chain, mono- and polyunsaturated fatty acids (1e...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.3109/14756366.2010.616860
更新日期:2012-12-01 00:00:00
abstract::A recombinant carbonic anhydrase (CA, EC 4.2.1.1) from the soil-dwelling bacterium Enterobacter sp. B13 was cloned and purified by Co(2+) affinity chromatography. Bioinformatic analysis showed that the new enzyme (denominated here B13-CA) belongs to the β-class CAs and to possess 95% homology with the ortholog enzyme ...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.3109/14756366.2015.1100176
更新日期:2016-12-01 00:00:00
abstract::A series of hydroxylic compounds (1-10, NK-154 and NK-168) have been assayed for the inhibition of three physiologically relevant carbonic anhydrase isozymes, the cytosolic isozymes I, II and tumor-associated isozyme IX. The investigated compounds showed inhibition constants in the range of 0.068-4003, 0.012-9.9 and 0...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.3109/14756366.2015.1114930
更新日期:2016-12-01 00:00:00
abstract::New anticancer agents are highly needed to overcome cancer cell resistance. A novel series of pyrimidine pyrazoline-anthracene derivatives (PPADs) (4a-t) were designed and synthesised. The anti-liver cancer activity of all compounds was screened in vitro against two hepatocellular carcinoma (HCC) cell lines (HepG2 and...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.1080/14756366.2019.1612889
更新日期:2019-12-01 00:00:00
abstract::Serum paraoxonase (PON1) is a high-density lipoprotein (HDL)-associated enzyme that protects lipoproteins, both low-density lipoprotein (LDL) and HDL, against oxidation, and is considered as an antioxidative/anti-inflammatory component of HDL. In this study, PON1 was purified from bovine serum by ammonium sulfate prec...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.3109/14756366.2013.879578
更新日期:2015-02-01 00:00:00
abstract::Exposure of the N-methoxycarbonyl-bicyclic-keto-acid 5 (improved preparation) to the Barnick beta-keto-acid synthesis yielded an aqueous solution of the sodium salts of the beta-keto-acids 26 and 27 which on heating at 60-65 degrees C furnished the N-methoxycarbonyl-tricyclic-ketone 9 (55%) plus the hydroxy-ketone 28 ...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.1080/14756360290032958
更新日期:2002-06-01 00:00:00
abstract::Alzheimer's disease is a progressive neurodegenerative illness accounting for approximately 50% of all types of dementia in elderly people. The only symptomatic treatment proven effective to date is the use of cholinesterase inhibitors to augment surviving cholinergic activity. The purpose of this study is to investig...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.1080/14756360802334719
更新日期:2009-06-01 00:00:00
abstract::Initial velocity enzyme kinetics was used to study the inhibition mechanism of guanidine hydrochloride (Gdm.Cl) on catalytic activity of recombinant human protein disulfide isomerase (rhPDI) in protein folding. Reduced C125A recombinant human interleukin 2 (C125A rhIL-2), the substrate, was dissolved in 8 M Gdm.Cl bef...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.1080/1475636021000049212
更新日期:2003-02-01 00:00:00
abstract::Small pinto bean is a cultivar of Phaseolus vulgaris. It produces a 16-kDa trypsin inhibitor that could be purified using anion exchange and size chromatography. Q-Sepharose, Mono Q and Superdex 75 columns were employed for the isolation process. Small pinto bean trypsin inhibitor demonstrated moderate pH stability (p...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.3109/14756366.2013.805756
更新日期:2014-08-01 00:00:00
abstract::Histidinol dehydrogenase (HDH, EC EC1.1.1.23) catalyses the final step in the biosynthesis of histidine and constitutes an attractive novel target for the development of new agents against the pathogenous, bacteria Brucella suis. A small library of new HDH inhibitors based on the L-histidinylphenylsulfonyl hydrazide s...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.1080/14756360701617107
更新日期:2008-06-01 00:00:00
abstract::Indoleamine 2,3-dioxygenase 1 (IDO1) activity links to immune escape of cancers. Inhibition of IDO1 provides a new approach for cancer treatment. Most clinical IDO1 drugs show marginal efficacy as single agents. On basis of molecular docking and pharmacophore modelling, a novel inhibitor Roxyl-WL was discovered with a...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.1080/14756366.2018.1471688
更新日期:2018-12-01 00:00:00
abstract::A series of bio-organometallic-hydrazones of the general formula [{(η5-C5H4)-C(R)=N-N(H)-C6H4-4-SO2NH2}]MLn(MLn = Re(CO)3, Mn(CO)3, FeCp; R=H, CH3) were prepared by reaction of formyl/acetyl organometallic precursors with 4-hydrazino-benzenesulphonamide. All compounds were characterized by conventional spectroscopic t...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.1080/14756366.2020.1724995
更新日期:2020-12-01 00:00:00
abstract::Recently the literature described the binding of Haptoglobin (HP) with ecotin, a fold-specific serine-proteases inhibitor with an anticoagulant profile and produced by Escherichia coli. In this work, we used some in silico and in vitro techniques to evaluate HP 3D-fold and its interaction with wild-type ecotin and two...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.3109/14756366.2013.774389
更新日期:2014-04-01 00:00:00
abstract::The human polymerase α (pol α) is a promising target for the therapy of cancer e.g. of the skin. The authors recently built a homology model of the active site of human DNA pol α. This 3D model was now used for molecular modelling studies with eight novel analogues of 2-butylanilino-dATP, which is a highly selective n...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.3109/14756366.2010.503609
更新日期:2011-04-01 00:00:00
abstract::The copper(II) complexes of the type [Cu(SPF)(A(n))Cl]/[Cu(PFL)(A(n))Cl] (where SPF is sparfloxacin, PFL is pefloxacin and A(n) is 2,2'-dipyridylamine/pyridine-2-carboxalehyde/thiophene-2-carboxaldehyde) were synthesised and were found to have a pyramidal geometry with a square base. The superoxide dismutase (SOD) lik...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.3109/14756366.2010.487486
更新日期:2011-04-01 00:00:00
abstract::Epidermal growth factor receptor (EGFR) and vascular endothelial growth factor receptor-2 (VEGFR-2), two protein tyrosine kinases, are involved in pathological disorders and the progression of different types of carcinomas. Concomitant inhibition of both tyrosine kinase activities appears to be an attractive target fo...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.3109/14756360903169485
更新日期:2010-04-01 00:00:00
abstract::Lipopeptides have been reported to exhibit anti-obesity effects. In this study, we obtained a Bacillus velezensis strain FJAT-52631 that could coproduce iturins, fengycins, and surfactins. Results showed that the FJAT-52631 crude lipopeptide, purified fengycin, iturin, and surfactin standards exhibited strong inhibiti...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.1080/14756366.2020.1734798
更新日期:2020-12-01 00:00:00
abstract::EGFR tyrosine kinase has been reported mainly in 40-80% of non-small lung cancers, in addition to colon and breast cancers. In this study, we illustrate the synthesis of a highly potent antitumor agent. The synthesized compound 4 was screened at NCI, USA, for antitumor activity against non-small lung cancer, colon can...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.3109/14756366.2014.887707
更新日期:2015-02-01 00:00:00
abstract::In the present study, some thiazole derivatives were synthesized via the ring closure reaction of 1-[2-(2-oxobenzo[d]thiazol-3(2H)-yl)acetyl]thiosemicarbazide with various phenacyl bromides. The chemical structures of the compounds were elucidated by (1)H NMR, (13)C NMR and mass spectral data and elemental analyses. E...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.3109/14756366.2011.653355
更新日期:2013-06-01 00:00:00
abstract::Di(2-ethylhexyl) phthalate (DEHP) is the most widely plasticizer for polyvinyl chloride (PVC) that is used in plastic tubes, in medical and paramedical devices as well as in food storage packaging. The toxicological profile of DEHP has been evaluated in a number of experimental animal models and has been extensively d...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.1080/14756360802205059
更新日期:2008-10-01 00:00:00
abstract::A small library of phosphorylated sulfamates (N-(O-alkylsulfamoyl)-phosphoramidic acids) incorporating long aliphatic chains (C8-C16) has been synthesized and investigated for their interaction with two physiologically relevant carbonic anhydrase (CA) isozymes. These compounds behaved as very potent inhibitors of both...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.1080/14756360410001689522
更新日期:2004-06-01 00:00:00
abstract::The synthesis of 1,2-dioxolane derivatives in two different acetophenone series, as simplified models of natural coumarins is described. 2-Acetyl-3-acetoxy-4-(3-hydroperoxy-3-methylbut-1-enyl)phenyl acetate and 2-acetyl-5-acetoxy4-(3-hydroperoxy-3-methylbut-1-enyl) phenyl acetate synthons are used as precursors to the...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.1080/1475636021000005677
更新日期:2002-12-01 00:00:00
abstract::A series of quinazoline derivatives with benzylidene hydrazine carboxamide were designed and synthesised as EGFR inhibitors. Most compounds exhibited exceptional anti-proliferative activity against A549, HepG2, MCF-7 and H1975 cells. Furthermore, six compounds demonstrated excellent inhibition activity against EGFRWT ...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.1080/14756366.2018.1518957
更新日期:2019-12-01 00:00:00
abstract::A series of 1,2,4-trisubstituted 5-imidazolinone derivatives were synthesized by Erlenmeyer condensation of benzoylglycine (hippuric acid) with different aldehydes in the presence of sodium acetate and acetic anhydride. The derivatives of the compounds were prepared by condensation of some known sulpha drugs with 5-ox...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.3109/14756366.2011.584191
更新日期:2012-04-01 00:00:00
abstract::This paper reports the synthesis of O-methyl and O-ethyl NSAID hydroxamic acids, their antimicrobial activities, and their ability to inhibit urease and soybean lipoxygenase activities. Ibuprofen and fenoprofen hydroxamic acids with free hydroxy groups present the highest antimicrobial activity, while indomethacin and...
journal_title:Journal of enzyme inhibition and medicinal chemistry
pub_type: 杂志文章
doi:10.1080/14756360902779128
更新日期:2009-10-01 00:00:00