Abstract:
:The dietary flavan-3-ol (-)-epicatechin improves the bioactivity of nitric oxide in arterial vessels in vivo. Moreover, it effectively protects cultured vascular endothelial cells from signs of oxidative stress and elevates intracellular nitric oxide in vitro. We addressed the effects of (-)-epicatechin, its metabolic conversion products and structurally related compounds on NADPH oxidase activity in intact human umbilical vein endothelial cells (HUVEC) and in cell lysates. (-)-Epicatechin proved to be an O2*(-)-scavenger but did not inhibit NADPH oxidase activity, whereas the converse pattern was observed for the metabolites 3'- and 4'-O-methyl epicatechin. The dimer procyanidin B2 and (-)-epicatechin glucuronide were O2*(-)-scavengers and inhibited NADPH oxidase. Analysis of structure-activity relations with 45 compounds suggests an apocynin-like mode of NADPH oxidase inhibition. Notably, HUVEC converted (-)-epicatechin to NADPH oxidase-inhibitory methyl ethers. These data identify endothelial NADPH oxidase as candidate target of dietary flavonoids and particularly of their metabolites.
journal_name
Arch Biochem Biophysjournal_title
Archives of biochemistry and biophysicsauthors
Steffen Y,Gruber C,Schewe T,Sies Hdoi
10.1016/j.abb.2007.10.012subject
Has Abstractpub_date
2008-01-15 00:00:00pages
209-19issue
2eissn
0003-9861issn
1096-0384pii
S0003-9861(07)00513-9journal_volume
469pub_type
杂志文章abstract::To investigate whether several food-derived heterocyclic amines are activated to genotoxic products in human fetal livers, cell lines stably expressing CYP3A7, a human fetus-specific form of cytochrome P450, NADPH-cytochrome P450 reductase, and human monomorphic or polymorphic N-acetyltransferase (NAT1 or NAT2) were e...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(95)90016-0
更新日期:1995-07-10 00:00:00
abstract::Heparin infusion in an experimental animal model of arterial injury causes a significant increase in the proteoglycan (PG) component of the extracellular matrix in the injured arteries (Snow, A. D., Bolender, R. P., Wight, T. N., and Clowes, A. W. (1990) Am. J. Pathol. 137, 313-330). The mechanisms responsible for thi...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1996.0527
更新日期:1996-12-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1993.1083
更新日期:1993-02-01 00:00:00
abstract::This study has been done to know what kind of factors in plasmas and processes on cells induce plasma gene transfection. We evaluated the contribution weight of three groups of the effects and processes, i.e. electrical, chemical and biochemical ones, inducing gene transfection. First, the laser produced plasma (LPP) ...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2016.04.013
更新日期:2016-09-01 00:00:00
abstract::Swainsonine, a plant toxin, strongly inhibits certain alpha-D-mannosidases but has no effect on others [D. R. P. Tulsiani, T. M. Harris, and O. Touster (1982) J. Biol. Chem. 257, 7936-7939]. The reversible inhibition of jack bean and lysosomal alpha-D-mannosidases has previously been suggested to be similar in nature ...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(85)90643-5
更新日期:1985-01-01 00:00:00
abstract::The roles of p67-deglycosylase (p67-DG) in the regulation of protein synthesis in baculovirus-infected insect cells were studied. Like vaccinia viral infection, baculovirus infection of insect cells also induced the appearance of a p67-DG. However, p67-DG activity could not be detected because these cells do not conta...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1997.0139
更新日期:1997-06-15 00:00:00
abstract::We previously showed that iron chelated to the Pseudomonas aeruginosa siderophore pyochelin enhances oxidant-mediated injury to pulmonary artery endothelial cells by catalyzing hydroxyl radical (HO(*)) formation. Therefore, we examined pyochelin structural/chemical features that may be important in this process. Five ...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.2001.2517
更新日期:2001-09-15 00:00:00
abstract::The environmental contaminant 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) induces a novel poly(ADP-ribose) polymerase (TiPARP). In this study, the signaling pathway of the induction was analyzed. Induction of TiPARP by TCDD occurs in both hepa1c1c7 cells and C57 mouse liver. Induction is concentration and time dependen...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/s0003-9861(02)00339-9
更新日期:2002-08-15 00:00:00
abstract::Although in vitro models are often used in beta-carotene research, knowledge about the uptake and metabolism of beta-carotene in cell lines is lacking. We measured by HPLC the intracellular levels of beta-carotene and its metabolites in 9 human intestinal and lung cell lines after exposure to 1 microM beta-carotene du...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2005.05.001
更新日期:2005-07-01 00:00:00
abstract::The objective of this study was to elucidate the anti-oxidative roles of coenzyme Q (CoQ) and alpha-tocopherol in mitochondrial membranes by determining whether CoQ directly scavenges peroxyl- and alkoxyl-radicals or indirectly regenerates alpha-tocopherol during autooxidation of mitochondrial membranes. A comparison ...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1997.0606
更新日期:1998-04-15 00:00:00
abstract::Treatment of streptozotocin (ST), tumor necrosis factor-alpha (TNF-alpha), and interleukin-1beta (IL-1beta) resulted in destroying insulin-secreting beta-cells of pancreatic islets and impairment of islet glucose oxidation and glucose-induced insulin secretion. IL-1beta and TNF-alpha inhibited insulin release and gluc...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1998.1004
更新日期:1999-02-15 00:00:00
abstract::Polycation binding to the negatively charged surface of chloroplast thylakoid membranes is known to cause an inhibition of photosystem I activity. It also interferes with the cation-dependent rearrangement of chlorophyll proteins in the thylakoid membrane. It was shown that added anions prevented or reversed the inhib...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(83)90503-9
更新日期:1983-04-01 00:00:00
abstract::Prostaglandin E2 (PGE2) plays a key role in inflammation-associated carcinogenesis. NAD+-dependent 15-hydroxyprostaglandin dehydrogenase (15-PGDH) catalyzes the oxidation of the 15(S)-hydroxyl group of PGE2 to generate 15-keto PGE2. 15-PGDH has been known as a tumor suppressor in various malignancies including colon c...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2019.108162
更新日期:2020-01-15 00:00:00
abstract::Chronic kidney disease (CKD) is an increasingly recognized burden for patients and health care systems with high (and growing) global incidence and prevalence, significant mortality, and disproportionately high treatment costs. Yet, the available diagnostic tools are either impractical in clinical routine or have seri...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章,评审
doi:10.1016/j.abb.2015.07.018
更新日期:2016-01-01 00:00:00
abstract::Methylibium petroleiphilum strain PM1 uses various petroleum products including the fuel additive methyl tert-butyl ether and straight chain and aromatic hydrocarbons as sole carbon and energy sources. It has two operons, dmpI and dmpII, that code for the enzymes in a pair of parallel meta-fission pathways. In order t...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2013.06.016
更新日期:2013-09-01 00:00:00
abstract::Oxygen free radicals and hydroperoxides have been postulated to play a causal role in the aging process, implying that antioxidant enzymes may act as longevity determinants. Catalase (H2O2:H2O2 oxidoreductase; EC1.11.1.6) is the sole enzyme involved in the elimination of H2O2 in Drosophila melanogaster; glutathione pe...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(92)90637-c
更新日期:1992-08-15 00:00:00
abstract::Providing clean and affordable drinking water without harmful disinfection byproducts generated by conventional chemical disinfectants gives rise to the need for technological innovation. Nanotechnology has great potential in purifying water and wastewater treatment. A graphene oxide-silver (GO-Ag) nanocomposite with ...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2016.04.018
更新日期:2016-08-15 00:00:00
abstract::GAPDH was speculated to function as a transient trap to reduce the potential toxicity of free heme by a specific and reversible binding with heme. Up to now, there has been lack of studies focused on this effect. In this paper, the efficiency of GAPDH-heme complex on catalyzing protein carbonylation and nitration, the...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2017.03.005
更新日期:2017-04-01 00:00:00
abstract::Several 2-halo-acyl-CoA derivatives have been synthesized to examine the interaction of these potential inhibitors of mitochondrial beta-oxidation with the purified medium chain acyl-CoA dehydrogenase from pig kidney. Racemic 2-bromo-, 2-chloro-, and 2-fluoro-octanoyl-CoA thioesters show 6.6, 33, and 3.5% of the activ...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1993.1184
更新日期:1993-04-01 00:00:00
abstract::The hnRNP A/B family contains abundant nuclear proteins with major roles in alternative splicing and the ability for nucleo-cytoplasmic shuttling. Compared to the best known members of this family (hnRNP A1, A2/B1), hnRNP A3 is a relatively less known protein. We report herein immunochemical studies with the hnRNP A3 ...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2012.04.012
更新日期:2012-07-15 00:00:00
abstract::The oxygenation pattern of the essential oil monoterpenes of commercial mint (Mentha) species is determined by regiospecific cytochrome P450-catalyzed hydroxylation of the common olefinic precursor (-)-4S-limonene. In spearmint (M. spicata), C6-allylic hydroxylation leads to (-)-trans-carveol and thence (-)-carvone, w...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.2000.1864
更新日期:2000-07-01 00:00:00
abstract::In spite of the abundance of antifungal therapies, 75% of women in the world suffer from the second most common cause of vaginal infection named vulvovaginal candidiasis. This complication is characterized with overgrowth of Candida albicans. The low efficacy and side effects of current antifungal therapies have convi...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2021.108772
更新日期:2021-01-22 00:00:00
abstract::Putidaredoxin reductase (PdR), an FAD-containing protein, mediates the transfer of electrons from NADH to putidaredoxin in the cytochrome P-450cam-dependent oxidation of camphor. Using stopped-flow spectrophotometry, reduction of putidaredoxin reductase by NADH (70 microM) at 4 degrees C appeared to be a pseudo-first-...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(88)90233-0
更新日期:1988-10-01 00:00:00
abstract::FOXP2 is a transcriptional repressor involved in development of the human brain and is the first gene product to be linked to the evolution of human speech. FOXP2 belongs to the FOX superfamily of proteins that share a common winged helix DNA binding domain - the forkhead domain. A divalent cation (Mg2+ or Ca2+) has b...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2018.09.009
更新日期:2018-11-01 00:00:00
abstract::The didecameric hemocyanin of the bivalve mollusc Nucula hanleyi, observed in the electron microscope in vitreous ice, was subjected to a three-dimensional (3D) reconstruction by the random conical tilt series method. The 3D volume was analyzed by computing solid-body surface representations and slices through the vol...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1995.1287
更新日期:1995-05-10 00:00:00
abstract::The cellular environment is crowded with different kinds of molecules with varying sizes, shapes and compositions. Most of the experiments studying the nature and behaviour of a protein have been done on the isolated protein in dilute buffer solutions which actually do not imitate the in vivo situation. To understand ...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2015.08.015
更新日期:2015-10-15 00:00:00
abstract::The conversion of the precursor of apolipoprotein A-I (proapoA-I) to apolipoprotein A-I (apoA-I) is known to occur extracellularly by an enzyme that has been shown to be present in plasma. The hepatocarcinoma-derived cell line Hep G2, when grown in culture, secretes proapoA-I. We now show that this cell line also secr...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(88)90003-3
更新日期:1988-11-15 00:00:00
abstract::The oxidative DNA damage by the cupric complexes of sisomicin was investigated in the presence of varying amounts of histidine, ATP, Mg(II) ions or phosphates. We found that by very low concentrations, the amino acid is able to inhibit the cleavage totally. This occurs both by its competition with antibiotic for coppe...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2004.07.018
更新日期:2004-11-01 00:00:00
abstract::Glycosphingolipids were extracted from human semen and purified. Based on the fluorometric assay of sphingosine, in spermatozoa a content of 4.4 +/- 0.9 nmol/10(8) cells of gangliosides and 22.1 +/- 1.7 nmol/10(8) cells of neutral glycosphingolipids was determined. Seminal plasma contained 4.1 +/- 0.6 nmol ganglioside...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(87)90579-0
更新日期:1987-09-01 00:00:00
abstract::A comparative study was made of the metal ion requirement of rat liver mitochondrial phospholipase A2 in purified and membrane-associated forms. Membrane-bound enzyme was assayed using either exogenous or endogenous phosphatidylethanolamine. Although several divalent metal ions caused increased activity of the membran...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(84)90346-1
更新日期:1984-10-01 00:00:00