Abstract:
:Several classes of environmental contaminants have been claimed or suggested to possess endocrine-disrupting potency, which may result in reproductive problems and developmental disorders. In this paper the focus is on the multiple and interactive mechanisms of interference of persistent polyhalogenated aromatic hydrocarbons (PHAHs) and their metabolites with the thyroid hormone system. Evidence suggests that pure congeners or mixtures of PHAHs directly interfere with the thyroid gland; with thyroid hormone metabolizing enzymes, such as uridine-diphosphate-glucuronyl transferases (UGTs), iodothyronine deiodinases (IDs), and sulfotransferases (SULTs) in liver and brain; and with the plasma transport system of thyroid hormones in experimental animals and their offspring. Changes in thyroid hormone levels in conjunction with high PHAH exposure was also observed in captive as well as free ranging wildlife species and in humans. Maternal exposure to PHAHs during pregnancy resulted in a considerable fetal transfer of hydroxylated PHAHs, which are known to compete with thyroxine (T4) for plasma transthyretin (TTR) binding sites, and thus may be transported to the fetus with those carrier proteins that normally mediate the delivery of T4 to the fetus. Concomitant changes in thyroid hormone concentrations in plasma and in brain tissue were observed in fetal and neonatal stages of development, when sufficient thyroid hormone levels are essential for normal brain development. Alterations in structural and functional neurochemical parameters, such as glial fibrillary acidic protein (GFAP), synaptophysin, calcineurin, and serotonergic neurotransmitters, were observed in the same offspring up to postnatal day 90. In addition, some changes in locomotor and cognitive indices of behavior were observed in rat offspring, following in utero and lactational exposure to PHAHs. Alterations in thyroid hormone levels and subtle changes in neurobehavioral performance were also observed in human infants exposed in utero and through lactation to relatively high levels of PHAHs. Overall these studies indicate that persistent PHAHs can disrupt the thyroid hormone system at a multitude of interaction sites, which may have a profound impact on normal brain development in experimental animals, wildlife species, and human infants.
journal_name
Toxicol Ind Healthjournal_title
Toxicology and industrial healthauthors
Brouwer A,Morse DC,Lans MC,Schuur AG,Murk AJ,Klasson-Wehler E,Bergman A,Visser TJdoi
10.1177/074823379801400107subject
Has Abstractpub_date
1998-01-01 00:00:00pages
59-84issue
1-2eissn
0748-2337issn
1477-0393journal_volume
14pub_type
杂志文章,评审abstract::This paper describes the development and implementation of physiologically-based pharmacokinetic (PB-Pk) models to examine the disposition of xenobiotics and their bioactivation. In a PB-Pk model, the structure of the model is based, to as great extent as practicable, on the actual physiological and biochemical struct...
journal_title:Toxicology and industrial health
pub_type: 杂志文章,评审
doi:10.1177/074823379401000101
更新日期:1994-01-01 00:00:00
abstract::Aluminum (Al) is commonly used in industrial processes and drugs and is thought to induce erythrocytes damage via activation of oxidative stress. Recently, bismuth (Bi)-containing drugs are used in the treatment of various diseases. However, uncertain effects of Bi in blood tissue may participate in the therapeutic ef...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/0748233710381894
更新日期:2011-03-01 00:00:00
abstract::Natural products possessing antioxidant properties play a very crucial role in ameliorating deleterious effects of reactive oxygen species. This study investigated the chemoprotective properties of methanolic extract of Vernonia amygdalina (MEVA) in an experimental model of hepatic oxidative damage induced by 2-acetyl...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/0748233713498436
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to evaluate the chemopreventive potential of organoselenium compounds (Se I and Se II) in the well-established rat model treated with 7,12-dimethylbenz[a]anthracene (DMBA), by monitoring the extent of tyrosine hydroxylase (TH) activity, adrenomedullin (ADM) level and total RNA level ...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/0748233711432575
更新日期:2013-04-01 00:00:00
abstract::In the last few decades the need for new approaches to assess DNA damage has been increasing due to the implications that different insults on genetic material may have on human health. In this context, the identification of how chemical agents with different mechanisms of action (i.e., antineoplastic drugs) damage DN...
journal_title:Toxicology and industrial health
pub_type: 杂志文章,评审
doi:10.1191/0748233705th224oa
更新日期:2005-09-01 00:00:00
abstract::The Royal Australian Air Force (RAAF) has reported that personnel involved in F-111 fuel tank maintenance were concerned that exposure to a range of chemicals during the period 1977 to mid-1990s was the cause of health problems, including cancer. Particular concern was directed at SR-51, a desealant chemical mixture c...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/0748233709103037
更新日期:2009-02-01 00:00:00
abstract::This study reports on airborne exposure levels and soil concentrations of lead in regard to abatement of a steel structure (water tank). The tank was de-leaded by abrasive sand blasting. The ball of the tank had a lead surface level that exceeded the Environmental Protection Agency (EPA) definition of lead-based paint...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1191/0748233702th127oa
更新日期:2002-02-01 00:00:00
abstract::This study demonstrates the detection and dynamics of macrocyclic trichothecene mycotoxin (MTM) tissue loading using a commercially available assay in a goat model. The detection of MTMs has been difficult and complex due to the uncertainty of what tissues to examine and when to sample. Twelve goats (two groups of eac...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/0748233709348275
更新日期:2009-10-01 00:00:00
abstract::Endocrine disrupting chemicals (EDCs) are defined as exogenous substances that can alter the development and functioning of the endocrine system. The Wnt signaling pathway is an evolutionarily conserved pathway consisting of proteins that transmit cell-to-cell receptors through cell surface receptors, regulating impor...
journal_title:Toxicology and industrial health
pub_type: 杂志文章,评审
doi:10.1177/0748233719898989
更新日期:2020-01-01 00:00:00
abstract::Polycyclic aromatic hydrocarbons have mutagenic and carcinogenic properties and some of them are classified as probable or possible human carcinogens. Aim of this study was to evaluate the genotoxic risk in workers exposed to diesel exaust. Environmental and biological monitoring exposure to polycyclic aromatic hydroc...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/0748233707077436
更新日期:2007-02-01 00:00:00
abstract::Carbendazim is a broad spectrum carbamate fungicide used in the control of various fungal pathogens. Licorice (Glycyrrhiza glabra) is one of the widely used medicinal plants in oriental nations. The present work studied the effect of licorice aqueous extract on carbendazim-induced testicular toxicity in albino rats. A...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/0748233712456059
更新日期:2014-04-01 00:00:00
abstract::The human teratogenic potential of chlordiazepoxide is debated. To study the effects on the fetal development of very large doses of chlordiazepoxide that were used for a suicide attempt during pregnancy, self-poisoned pregnant women were identified from patients in a toxicological inpatient clinic in Budapest, Hungar...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/0748233708089018
更新日期:2008-02-01 00:00:00
abstract::The Norplant* system is composed of a set of six Silastic* (silicone polydimethysiloxane) capsules measuring 34 mm by 2.4 mm, each containing 36 mg of levonorgestrel and sealed at either end with a medical grade silicone elastomer adhesive. Levonorgestrel is a synthetic progestin, widely used in combination oral contr...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/074823379501100104
更新日期:1995-01-01 00:00:00
abstract::The purpose of this study was to evaluate the potential influence of occupational ionizing radiation (IR) exposure on health professionals, assessing DNA damage using the comet and micronucleus (MN) assays and analyzing relative risks, correlations, and associated factors between outcomes and socioeconomic and lifesty...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/0748233720932081
更新日期:2020-05-01 00:00:00
abstract::Mercury has been used in many domains of human activities for many years, although in any form mercury is reported to be toxic. On the other hand, lichens have been used in the treatment of several diseases such as tuberculosis, hemorrhoids, ulcer, dysentery and cancer. Animal investigations on some common lichen spec...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/0748233711404036
更新日期:2012-02-01 00:00:00
abstract::In the present study, we attempted to elucidate the induction of autophagy in rat hepatocytes by a low concentration of mercury. Hepatocytes treated with different doses of mercuric chloride (HgCl2; 1, 2.5, 5 and 10 µM) and at different time intervals (0 min, 30 min, 1 h, 2 h and 4 h) show autophagic cell death only a...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/0748233712462442
更新日期:2014-08-01 00:00:00
abstract::The gem-polishing industry in Jaipur, India employs a substantial proportion of children. The process of polishing may result in exposure to chromium in working children. Thus, this study aims to find out the levels of chromium in these working children and the associated factors. Blood samples were analysed for chrom...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/0748233711409483
更新日期:2012-03-01 00:00:00
abstract::The following is a review of some of the work we have done since 2004 regarding the importance of molds and their mycotoxins in the phenomenon of sick building syndrome (SBS). In these studies we showed that the macrocyclic trichothecene mycotoxins (MTM) of Stachybotrys chartarum (SC) are easily dissociated from the s...
journal_title:Toxicology and industrial health
pub_type: 杂志文章,评审
doi:10.1177/0748233709348287
更新日期:2009-10-01 00:00:00
abstract::Orange B, a pyrazolone dye used to color frankfurter and sausage casings, was given in distilled drinking water to pregnant Osborne-Mendel rats throughout gestation. Assessed on the basis of fluid consumption, the dose levels of 0, 0.05, 0.1, 0.2, and 0.4% corresponded to daily Orange B consumption of 0, 67.5, 129.6, ...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/074823379501100402
更新日期:1995-07-01 00:00:00
abstract::The effects of trona (Kaun), a food additive, on the redox status of the liver and kidney of male Wistar rats were investigated. A total of 60 male rats (145 ± 2.52 g) were grouped into four: A, B, C and D, where group A (the control) received 1 mL of distilled water orally while those in groups B, C and D (test group...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/0748233712469654
更新日期:2015-02-01 00:00:00
abstract::Electrical and electronic waste (E-waste) has now become the fastest growing solid waste around the world. Primitive recycling operations for E-waste have resulted in severe contamination of toxic metals and organic chemicals in the related areas. In this study, six dust and soil samples collected from E-waste recycli...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/0748233711399313
更新日期:2011-10-01 00:00:00
abstract::Wild alligators exposed to persistent organochlorine contaminants, municipal waste compounds, and contemporary-use herbicides exhibit reproductive alterations that are thought to be caused by endocrine disruption. This study tests the hypothesis that these alterations, at least in part, result from exposure of alligat...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1191/074823399678846565
更新日期:1999-01-01 00:00:00
abstract::In the present work, 6 honeydew samples of known geographical and botanical origins and 11 honeybee samples were analyzed to detect possible contamination by the thermoelectric power plants in Mugla, Turkey. The contents of trace elements were determined by atomic absorption spectrometry after application of microwave...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/0748233713503393
更新日期:2016-03-01 00:00:00
abstract::Significant numbers of chemicals have been shown to be carcinogenic in mouse liver although they do not exhibit carcinogenic activity in other organs or tissues of mice or rats. This review focuses on the reasons for the unique susceptibility of the mouse liver to these carcinogens and the extent to which the carcinog...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/074823378500100421
更新日期:1985-12-01 00:00:00
abstract::Exposure to the humidifier disinfectant, polyhexamethylene guanidine phosphate (PHMG), in mists generated from ultrasonic humidifiers was studied in a simulation chamber and apartment rooms. PHMG is suspected as a causative agent of lung disease in Korea residences. In the simulation-chamber study, the amount of disin...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/0748233717724983
更新日期:2017-11-01 00:00:00
abstract::Forty-nine female workers in the shoemaking industry, exposed to a solvent mixture containing benzene and twenty-seven non-exposed controls, were investigated. Concentrations of benzene and toluene in the working atmosphere, as well as benzene and toluene in blood and phenols in pre- and post-shift urine as parameters...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/074823379701300402
更新日期:1997-07-01 00:00:00
abstract::Ferric nitrilotriacetate (Fe-NTA) is a known renal carcinogen and has been shown to adversely induce oxidative stress and tissue toxicity after both acute and chronic exposure. Present studies were designed to study the hepatoprotective and antioxidant potential of butylated hydroxyanisole (BHA), a phenolic antioxidan...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/0748233714554409
更新日期:2015-11-01 00:00:00
abstract::Trans-1,1,1,4,4,4-hexafluoro-2-butene (HFO-133mzz-E) is an odorless gas that finds uses as a foam transfer agent, heat transfer fluid, and specialty gas. The acute 4-h LC50 (in rats) for HFO-133mzz-E is > 17,000 ppm; it was not an eye or dermal irritant in 3- and 13-week repeated-dose inhalation studies in rats at con...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/0748233719825529
更新日期:2019-03-01 00:00:00
abstract::Arsenic poisoning is well-known for its innumerable toxic and carcinogenic effects. In vivo data on reproductive toxicity are also known but in vitro data are scant. Presently, we evaluated the in vitro toxic effects of sodium arsenite (NaAsO2) on adult mice testes and epididymal tissues using organ cultures. Testicul...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/0748233719885574
更新日期:2019-10-01 00:00:00
abstract::The New York State Angler Study will evaluate the association between past and current consumption of contaminated fish from Lake Ontario and both short- and long-term health effects in a population-based cohort. It will measure fish consumption and reproductive and developmental health among 10,518 male anglers and 6...
journal_title:Toxicology and industrial health
pub_type: 杂志文章
doi:10.1177/074823379601200305
更新日期:1996-05-01 00:00:00