Abstract：
:A recent intervention study demonstrated the occurrence of irilone as second most abundant isoflavone next to daidzein in human plasma after consumption of a red clover-based dietary supplement (RCDS) containing predominately formononetin ≫ biochanin A > irilone (12 % of these isoflavones). To elucidate the relevance of this finding, in the present study (1) the representativeness of the isoflavone composition of the RCDS and (2) the estrogenic activity of irilone were investigated. Thus, major isoflavones were quantified in eight commercially available RCDS. Furthermore, the estrogenic activities of irilone and other isoflavones were determined by marker gene expression in Ishikawa and cell proliferation in MCF-7 cells. Irilone amounted to 1.8-10.9 mg/g capsule content and 5-18 % of the three major isoflavones, respectively, demonstrating the general occurrence of irilone in RCDS. Moreover, irilone significantly induced the activity of alkaline phosphatase (AlP) as well as AlP, progesterone receptor, and androgen receptor mRNA levels in Ishikawa cells. Furthermore, irilone significantly induced MCF-7 cell proliferation. Neither 17β-estradiol (E2)-induced AlP activity nor E2-induced MCF-7 cell proliferation was affected by irilone. ICI182,780 antagonized IRI-induced effects on both AlP activity and cell proliferation, suggesting an estrogen receptor agonistic mode of action. Taking into account the estrogenic activity of red clover isoflavones (formononetin, biochanin A, prunetin, glycitein) and their biotransformation products (daidzein, genistein, ethylphenol) as well as published plasma levels of isoflavones after consumption of RCDS, irilone could contribute approximately 50 % of the E2 equivalents estimated for daidzein.
journal_name
Arch Toxicoljournal_title
Archives of toxicologyauthors
Lutter S,Schmalbach K,Esch HL,Lehmann Ldoi
10.1007/s00204-013-1114-5subject
Has Abstractpub_date
2014-02-01 00:00:00pages
309-21issue
2eissn
0340-5761issn
1432-0738journal_volume
88pub_type
杂志文章abstract：:Retinoids, derivatives of vitamin A, are essential for many vertebrate functions. Furthermore, several drugs of this class of compounds are valuable in the treatment of certain forms of skin disorders and cancer. However, the therapeutic application of retinoids is limited by their teratogenic potency. The limbs are i...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s002040050368
更新日期：1997-01-01 00:00:00
abstract：:5-Hydroxymethylfurfural (HMF) and furfuryl alcohol (FFA) are moderately potent rodent carcinogens that are present in thermally processed foodstuffs. The carcinogenic effects were hypothesized to originate from sulfotransferase (SULT)-mediated bioactivation yielding DNA-reactive and mutagenic sulfate esters, a confirm...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-014-1392-6
更新日期：2016-01-01 00:00:00
abstract：:Quinacrine hydrochloride is toxic for the heart of F-344 rats. Rats treated with 500 ppm quinacrine hydrochloride in the diet all developed a high incidence of left atrial thrombosis. The lesion was associated with cardiac hypertrophy and dilatation and focal myocardial degeneration. Rats died from cardiac hypertrophy...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00316350
更新日期：1984-11-01 00:00:00
abstract：:Primary hepatocytes are a widely used cell model to analyse the expression and regulation of hepatic cytochrome P450 (CYP) isoenzymes. Transforming growth factor-beta1 (TGF-beta1) was previously shown to inhibit constitutive and induced CYP1 expression in human cell lines and primary hepatocytes but not in rat cells. ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s002040050667
更新日期：2000-05-01 00:00:00
abstract：:Female C57/BL/6 x DBA/2 hybrid mice were exposed to two concentrations (270 and 135 ppm) of tetrachloroethylene (PER) in inhalation chambers for 6 h/day, 5 days per week, up to 11.5 weeks (270 ppm) and 7.5 weeks (135 ppm), respectively, followed by a 3-week exposure-free period. In the peripheral blood a reduction of ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF01974021
更新日期：1992-01-01 00:00:00
abstract：:Current developmental neurotoxicity (DNT) testing in animals faces major limitations, such as high cost and time demands as well as uncertainties in their methodology, evaluation and regulation. Therefore, the use of human-based 3D in vitro systems in combination with high-content image analysis (HCA) might contribute...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-016-1852-2
更新日期：2017-04-01 00:00:00
abstract：:Groups of adult male Sprague-Dawley rats were treated i.p. with 0, 0.3 and 0.5 mmole bromobenzene (BB)/kg per day in corn oil, 5 days a week for 4 weeks. Thereafter, one half of each of these groups was treated i.p. with a single acute toxic dose of 2.5 mmole BB/kg. Urines were then collected for 24 h and the animals ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF02098037
更新日期：1991-01-01 00:00:00
abstract：:Previous human and experimental studies have demonstrated that lead exposure may modify the metabolism of lipids. Several studies have indicated that exposure to lead produces an increase in lipid peroxidation and inhibits blood superoxide dismutase activity. Recently, lipid peroxides have been shown to impair tissue ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF01973308
更新日期：1993-01-01 00:00:00
abstract：:Monolayers of L6 rat skeletal myoblast cells formed surface binding isotherms with the purified tobacco leaf glycoprotein TGP1 and the enriched cigarette tar glycoprotein TGP2. Scatchard analysis showed that the binding in the range of the limited concentrations tested was to a single class molecule and the calculated...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s002040050151
更新日期：1995-01-01 00:00:00
abstract：:In recent years test systems have been described that may be applied routinely to discriminate between contact allergens and irritants in vitro. Using human monocyte-derived dendritic cells (MoDC), this study was designed to refine the settings of a potential routine screening protocol for contact allergens and to inv...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-004-0606-8
更新日期：2005-01-01 00:00:00
abstract：:The implementation of the Chemical Weapon Convention (CWC), prohibiting the development, production, storage and use of chemical weapons by 192 nations and the ban of highly toxic OP pesticides, especially class I pesticides according to the WHO classification, by many countries constitutes a great success of the inte...
journal_title：Archives of toxicology
pub_type： 杂志文章,评审
doi：10.1007/s00204-016-1772-1
更新日期：2016-09-01 00:00:00
abstract：:Gene expression analysis has been established as a tool for the characterization of genotoxic mechanisms of chemical mutagens. It has been suggested that expression analysis is capable of distinguishing compounds that cause DNA damage from those that interfere with mitotic spindle function. Formaldehyde (FA) is known ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-013-1060-2
更新日期：2013-11-01 00:00:00
abstract：:Microsomal and soluble epoxide hydrolase (mEH and sEH) fulfill apparently distinct roles: Whereas mEH detoxifies xenobiotics, sEH hydrolyzes fatty acid (FA) signaling molecules and is thus implicated in a variety of physiological functions. These epoxy FAs comprise epoxyeicosatrienoic acids (EETs) and epoxy-octadeceno...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-017-2060-4
更新日期：2017-11-01 00:00:00
abstract：:Ochratoxin A (OTA) is a toxin produced by fungi such as Aspergillus spp. and Penicillium spp. The key target organ of OTA toxicity is the kidney, and it is known that epithelial-to-mesenchymal transition (EMT) leading to fibrosis is enhanced after long-term exposure of the kidney to OTA. However, the mechanisms respon...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-020-02829-9
更新日期：2020-09-01 00:00:00
abstract：:Acrylamide (AA) is a widely studied industrial chemical that is neurotoxic, mutagenic to somatic and germ cells, and carcinogenic in rodents. The recent discovery of AA at ppm levels in a wide variety of commonly consumed foods has energized research efforts worldwide to define toxicity and prevention. Metabolism and ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-006-0109-x
更新日期：2006-12-01 00:00:00
abstract：:Platinum coordination complexes (PtCx) are potent against several types of cancer but are often nephrotoxic. With a view to developing a PtCx nephrotoxicity model, the toxicity of cisplatin (cDDP), transplatin (tDDP) and carboplatin (CBDCA) was studied in primary cultures of rabbit proximal tubule (RPT) cells and in t...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF01973705
更新日期：1993-01-01 00:00:00
abstract：:Effects of the oxime HI-6, unrelated to reactivation of acetylcholinesterase (AChE), on field potentials in the dentate gyrus of the rat hippocampus following AChE inhibition, were investigated both in vitro and in vivo. In hippocampal slices, AChE inhibition decreased the perforant path evoked population spike amplit...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s002040050146
更新日期：1994-01-01 00:00:00
abstract：:Several structurally different metal chelating agents were screened for their relative efficacy in counteracting acute manganese intoxication in mice. Polyaminocarboxylic acids with nitrogen and oxygen as metal binding sites were more effective than certain sulfhydryl chelating agents and common drugs in preventing mo...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00569233
更新日期：1982-05-01 00:00:00
abstract：:Cyclohexylmethylphosphonofluoridate (cyclosarin) is a highly toxic organophosphate, which was shown to be rather resistant to conventional oxime therapy. To give more insight into the inhibition, reactivation and aging kinetics, human acetyl-(AChE) and butyrylcholinesterase (BChE) were inhibited by cyclosarin (k2 of 7...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s002040050546
更新日期：1998-09-01 00:00:00
abstract：:The current test systems employed by pharmaceutical industry are poorly predictive for drug-induced liver injury (DILI). The 'MIP-DILI' project addresses this situation by the development of innovative preclinical test systems which are both mechanism-based and of physiological, pharmacological and pathological releva...
journal_title：Archives of toxicology
pub_type： 杂志文章,评审
doi：10.1007/s00204-016-1845-1
更新日期：2016-12-01 00:00:00
abstract：:A new strategy for the evaluation of mixtures is presented. The mixture used was the organic extract of diesel exhaust particles (DEP). After extraction with dichloromethane (DCM), the crude extract was fractionated according to polarity into five fractions: aliphatic hydrocarbons, polycyclic aromatic hydrocarbons (PA...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s002040050392
更新日期：1997-01-01 00:00:00
abstract：:The development and application of high throughput in vitro assays is an important development for risk assessment in the twenty-first century. However, there are still significant challenges to incorporate in vitro assays into routine toxicity testing practices. In this paper, a robust learning approach was developed...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-018-2260-6
更新日期：2018-09-01 00:00:00
abstract：:Mercury exists in the environment in various forms, all of which pose a risk to human health. Despite guidelines regulating the industrial release of mercury into the environment, humans continue to be exposed regularly to various forms of this metal via inhalation or ingestion. Following exposure, mercuric ions are t...
journal_title：Archives of toxicology
pub_type： 杂志文章,评审
doi：10.1007/s00204-016-1803-y
更新日期：2017-01-01 00:00:00
abstract：:The aim of this study was to investigate the genotoxic potential of DNA adducts and to compare DNA adduct levels and patterns in petroleum vacuum distillates, coal tar distillate, bitumen fume condensates, and related substances that have a wide range of boiling temperatures. An in vitro assay was used for DNA adduct ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s002040000172
更新日期：2001-01-01 00:00:00
abstract：:The present study has investigated the ability of amitraz, a widely used formamidine pesticide, to modulate serum concentrations and liver microsomal metabolism of 17beta-estradiol (E2) and testosterone in rats. Amitraz was administered intraperitoneally to male rats for 4 days and to intact female rats or ovariectomi...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-008-0288-8
更新日期：2008-10-01 00:00:00
abstract：:The activity of 18 vitamin D analogs on soft tissue calcification and growth impairment in neonatal rats and their effect on bone calcium mobilization, intestinal calcium absorption and binding to intestinal 1,25-dihydroxyvitamin D3 receptors in adult rats were compared. Depending on the chemical modification of the v...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00303129
更新日期：1989-01-01 00:00:00
abstract：:Chalepensin, a furanocoumarin, is present in several medicinal Rutaceae plants and causes a mechanism-based inhibition of human and mouse cytochrome P450 (P450, CYP) 2A in vitro. To address the in vivo effect, we investigated the effects of chalepensin on multiple hepatic P450 enzymes in C57BL/6JNarl mice. Oral admini...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-012-0902-7
更新日期：2012-12-01 00:00:00
abstract：:A study was conducted to determine the levels of cis-diamminedichloroplatinum (II) (cisplatin) in plasma proteins and hemoglobin of cancer patients after cisplatin chemotherapy. Thirty-seven cancer patients with different type of cancers (lung, esophageal, urinary tract, and testicular cancer, melanoma, osteosarcoma e...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00303124
更新日期：1989-01-01 00:00:00
abstract：:The comet assay is a versatile, reliable, cost-efficient, and fast technique for detecting DNA damage and repair in any tissue. It is useable in almost any cell type and applicable to both eukaryotic and prokaryotic organisms. Instead of highlighting one of the numerous specific aspects of the comet assay, the present...
journal_title：Archives of toxicology
pub_type： 杂志文章,评审
doi：10.1007/s00204-016-1767-y
更新日期：2016-10-01 00:00:00
abstract：:Lead (Pb) exposure of consumers and the environment has been reduced over the past decades. Despite all measures taken, immission of Pb onto agricultural soils still occurs, with fertilizer application, lead shot from hunting activities, and Pb from air deposition representing major sources. Little is known about the ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-020-02762-x
更新日期：2020-07-01 00:00:00
