Abstract：
:Information about the effects of phytoestrogens in the liver, the main organ of metabolism, is limited. In this study we have examined the dose dependent effects of the phytoestrogen genistein (GEN) on gene expression in rat liver in comparison to the potent estrogen ethinylestradiol (EE). Special attention was paid to strain specific differences between Wistar- (WIS) and Sprague-Dawley rats (SD). EE as well as GEN stimulated the gene expression of insulin like growth factor binding protein 1 (IGFBP-1), similarly in both strains. The mRNA expression of Vitamin D dependent calcium-binding protein (CaBP9k) was stimulated by EE in both strains but more pronounced in WIS rats. Interestingly GEN stimulates CaBP9k gene expression only in SD rats. Gene expression of apolipoprotein AI (ApoAI) was not affected in both strains neither by EE nor by GEN. These results are indicative of strain specific differences in the response of liver genes to GEN or EE.
journal_name
Toxicol Lettjournal_title
Toxicology lettersauthors
Geis RB,Diel P,Degen GH,Vollmer Gdoi
10.1016/j.toxlet.2005.01.001keywords:
subject
Has Abstractpub_date
2005-05-16 00:00:00pages
21-9issue
1eissn
0378-4274issn
1879-3169pii
S0378-4274(05)00005-6journal_volume
157pub_type
杂志文章abstract：:The liver, which is the major organ responsible for the metabolism of drugs and toxic chemicals, is also the primary target organ for many toxic chemicals. Increasing evidence has indicated that inflammatory processes are intimately involved in chemical-induced hepatotoxic processes, and like other inflammatory diseas...
journal_title：Toxicology letters
pub_type： 杂志文章,评审
doi：10.1016/s0378-4274(01)00284-3
更新日期：2001-03-31 00:00:00
abstract：:Work with sub-natural levels of deuterium (D) in animals has demonstrated an anti-cancer effect of low D-concentration in water. Our objective was to investigate whether deuterium-depleted water (DDW) can overturn reverse manganese (Mn)-induced reduction in life span, using the Caenorhabditis elegans (C. elegans) as a...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/j.toxlet.2012.04.014
更新日期：2012-06-20 00:00:00
abstract：:The effects of flavoglaucin from Aspergillus chevalieri (Mangin) Thom et Church on mitochondrial reactions have been investigated to obtain insight into the mode of actions on biomembranes by means of isolated rat liver mitochondria. It was found that flavoglaucin exhibited a strong uncoupling effect on oxidative phos...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/0378-4274(83)90137-6
更新日期：1983-12-01 00:00:00
abstract：:Benzene is an occupational and environmental toxicant. The major health concern for humans is acute myelogenous leukemia. To exert its toxic effects, benzene must be metabolized by cytochrome P450 to phenol and subsequently to catechol and hydroquinone. Previous research has implicated CYP2E1 in the metabolism of phen...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/s0378-4274(01)00441-6
更新日期：2001-12-15 00:00:00
abstract：:Triptolide (TP) is the main ingredient of Chinese herb Tripterygium wilfordii Hook f. (TWHF). Despite of its multifunction in pharmaceutics, accumulating evidences showed that TP caused obvious hepatotoxicity in clinic. The current study investigated the role of Notch1 signaling in TP-induced hepatotoxicity. Our data ...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/j.toxlet.2018.10.024
更新日期：2019-01-01 00:00:00
abstract：:Overexposure to manganese (Mn) has been known to induce neuronal death and neurodegenerative symptoms. However, the precise mechanisms underlying Mn neurotoxicity remain incompletely understood. In the present study, we established a Mn-exposed rat model and found that downregulation of wild type p53-induced phosphata...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/j.toxlet.2014.12.019
更新日期：2015-05-19 00:00:00
abstract：:Diazinon, in acute doses (40 mg/kg, i.p.) in rats produced tremors and convulsions with lactic acidosis which was accompanied by depletion of glycogen and activation of glycogen phosphorylase activity in triceps and diaphragm muscles, 2 h after its administration. Prevention of convulsions with phenobarbitone administ...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/0378-4274(87)90140-8
更新日期：1987-08-01 00:00:00
abstract：:Children may be inherently more vulnerable than adults to the lethal effects associated with chemical warfare nerve agent (CWNA) exposure because of their closer proximity to the ground, smaller body mass, higher respiratory rate, increased skin permeability and immature metabolic systems. Unfortunately, there have on...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/j.toxlet.2015.11.023
更新日期：2016-01-22 00:00:00
abstract：:In humans organophosphorothionate pesticides (OPT) prenatal exposure has been demonstrated. Since OPT-induced neurodevelopmental effects may be due to in situ bioactivation by foetal enzymes, the catalytic activity of the foetal CYP3A7 toward chlorpyrifos (CPF), parathion (PAR), malathion (MAL) and fenthion (FEN) has ...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/j.toxlet.2006.10.006
更新日期：2006-12-15 00:00:00
abstract：:The incidence of spontaneous neoplasms in outbred, inbred and F1 hybrid strains was compared using the Charles River-CD rat and mouse, the F344 rat, and B6C3HF1 mouse. These strains are commonly used in carcinogenic studies. Each strain has a consistent pattern of tumor occurrence; testicular, pituitary and lymphoreti...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/0378-4274(82)90113-8
更新日期：1982-04-01 00:00:00
abstract：:While numerous surveys highlighted the natural co-occurrence of mycotoxins in food, data about their toxicological combined effects is still limited. This is especially the case for chronic exposure conditions, although the latter are more representative of the mycotoxin risk associated with food consumption than acut...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/j.toxlet.2017.08.080
更新日期：2017-10-05 00:00:00
abstract：:Cytotoxicity in terms of haemolytic potency in vitro of eight surfactants failed to correlate with in vivo rabbit eye irritancy. Ability of the same surfactants to block spontaneous contractions of mouse and rabbit isolated ileum (especially the latter), correlated better with in vivo findings in rabbit eyes. Effectiv...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/0378-4274(83)90062-0
更新日期：1983-08-01 00:00:00
abstract：:Human saliva offers a unique noninvasive approach for populational study. Purposes of this study were to investigate the feasibility of using saliva manganese (Mn) concentration as a biomarker of Mn exposure among career welders and to study the variations of Mn, copper (Cu), zinc (Zn), cadmium (Cd), and lead (Pb) in ...
journal_title：Toxicology letters
pub_type： 杂志文章,多中心研究
doi：10.1016/j.toxlet.2007.10.003
更新日期：2008-01-04 00:00:00
abstract：:An atomic absorption spectrophotometric (AAS) method was successfully applied to analysis of urine for arsenic (As) as a measure of biological monitoring of occupational exposure to As in Vietnam. The application of the method to urine samples from 75 non-exposed control urbanites (after 2-day abstinence from sea food...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/s0378-4274(99)00087-9
更新日期：1999-09-05 00:00:00
abstract：:Manganese (Mn) is an essential trace element required for normal function and development. However, exposure to this metal at elevated levels may cause manganism, a progressive neurodegenerative disorder with neurological symptoms similar to idiopathic Parkinson's disease (IPD). Elevated body burdens of Mn from exposu...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/j.toxlet.2012.12.024
更新日期：2013-04-26 00:00:00
abstract：:The aim of this study was to establish an air-liquid interface (ALI) culture of precision-cut lung slices (PCLS) for direct exposure of lung cells to gaseous contaminants. Nitrogen dioxide (NO(2)) and ozone (O(3)) were selected as model gas compounds. Acute pro-inflammatory and toxic effects of NO(2) and O(3) on live ...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/j.toxlet.2010.04.004
更新日期：2010-07-01 00:00:00
abstract：:The effect of paraquat on lung subcellular calcium transport was studied in male Sprague-Dawley rats. With a high dose of 30 mg/kg given i.p., a significant decrease in the lung mitochondrial and microsomal calcium uptake at 24, 48, and 72 h after paraquat was observed. Trend of recovery was evident at 96 h in the sur...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/0378-4274(88)90117-8
更新日期：1988-09-01 00:00:00
abstract：:Nuclear accumulation of the tumorsuppressor protein p53 indicates the occurrence of chromatin injury (J. Cancer Res. Clin. Oncol. 1991, 117, 30; Oncogene 1993, 8, 307) and may be used as an analytical tool to detect genotoxic agents. This mechanism was used to evaluate the DNA-damaging potency (clastogenicity) of the ...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/0378-4274(96)03711-3
更新日期：1996-11-01 00:00:00
abstract：:Combined effects of mycotoxin mixtures are of major concern due to the widespread occurrence of human exposure to mixtures. Owing to the lack of sufficient mixture data regarding the human immune function, the aim of this study was to specify, evaluate and predict the combined effects of mycotoxin mixtures upon the fu...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/j.toxlet.2007.02.012
更新日期：2007-04-25 00:00:00
abstract：:Mercury(II) ions are known to accumulate in the kidney and their effect upon the renin-angiotensin system has also been described. The question, however, whether mercury(II) also exerts direct effect on the juxtaglomerular cells (JGC) to induce renin release remained to be answered. Suspension of isolated glomeruli wa...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/0378-4274(96)03637-5
更新日期：1996-04-01 00:00:00
abstract：:Nonylphenol (NP) is a representative endocrine disruptor that has an adverse effect on male reproduction and posses direct hazard to Sertoli cells, but the mechanism remains incompletely elucidated. In the present study, based on the structural comparability and high affinity between NP and membrane phospholipid molec...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/j.toxlet.2008.08.011
更新日期：2008-12-15 00:00:00
abstract：:Pregnant mice of C57BL/6 and DBA/2 inbred strains were exposed to cigarette smoke during days 1-18 of pregnancy. Both mothers and offspring were killed at the age of 21-22 weeks, and ovaries were studied with respect to the number of primordial follicles and small primary follicles. In additional studies, 7,12-dimethy...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/0378-4274(85)90103-1
更新日期：1985-04-01 00:00:00
abstract：:1,3,5-Trinitro-2-acetyl pyrrole (TNAP) is a product derived from the reaction of 2-acetyl pyrrole with nitrite in the model of Maillard browning systems. This compound is moderately mutagenic to the Salmonella strains TA98 and TA100 and is markedly cytotoxic to mouse C3H10T1/2 cells. Experiments are performed to inves...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/s0378-4274(96)03801-5
更新日期：1996-12-16 00:00:00
abstract：:Doxorubicin (DOX) is a chemotherapeutic agent of which the medical use is limited due to cardiotoxicity. While acute cardiotoxicity is reversible, chronic cardiotoxicity is persistent or progressive, dose-dependent and irreversible. While DOX mechanisms of action are not fully understood yet, 3 toxicity processes are ...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/j.toxlet.2018.05.029
更新日期：2018-09-15 00:00:00
abstract：:The oxidation of styrene to styrene oxide and the hydration of this metabolite to styrene glycol was investigated in hepatocytes, 9000 x g supernatant (S9) and the microsomal fraction from rat liver. Similar amounts of free styrene oxide were found in microsomes, hepatocytes and S9. However, on the basis of the format...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/0378-4274(84)90120-6
更新日期：1984-11-01 00:00:00
abstract：:The deposition of excess or abnormal collagen characteristic of pulmonary fibrosis can disrupt gas exchange resulting in severe respiratory impairment. There currently are no effective pharmacologic agents available that inhibit the fibrotic process. Pirfenidone (5-methyl-1-phenyl-2-(1H)-pyridone) is an investigationa...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/s0378-4274(96)03845-3
更新日期：1997-02-07 00:00:00
abstract：:Zinc chloride (0.01 mM kept for 3h) is not toxic to cultured cerebellar granule neurons (CGNs) while kainate (0.1mM kept for 3h) demonstrates some but very low toxicity towards these cells. Measurements of the relative intraneuronal zinc ion concentration showed that increase in [Zn(2+)](i) under the simultaneous acti...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/j.toxlet.2011.10.003
更新日期：2012-01-05 00:00:00
abstract：:Hexavalent chromium (Cr (VI)) is an environmental human carcinogen which primarily targets lungs. Among a variety of toxic mechanisms, disruption of biological pathways via translational and post-translational modifications represents a key mechanism through which Cr (VI) induces cytotoxicity and carcinogenesis. To id...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/j.toxlet.2016.08.025
更新日期：2016-12-15 00:00:00
abstract：:Antioxidants of the vitamin E family have protective effects against metal toxicity. We examined the protective effect of racemic LLU-alpha [2,7,8-trimethyl-2-(carboxyethyl)-6-hydroxychroman] a metabolite of gamma-tocopherol, in comparison to the effect of alpha- and gamma-tocopherol in rats treated with sodium dichro...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/s0378-4274(01)00368-x
更新日期：2001-07-06 00:00:00
abstract：:The effect of different doses of methylglyoxal (50-400 mg/kg body wt.) were examined using enzymes involved in the antioxidant function, glutathione (GSH) content and lipid peroxidation in the liver and spleen of Swiss albino mice (7-8 week old) after 6, 12 and 24 h. Significant changes were observed predominantly in ...
journal_title：Toxicology letters
pub_type： 杂志文章
doi：10.1016/s0378-4274(97)00087-8
更新日期：1997-12-01 00:00:00
