Abstract：
:Pyrethroids are pesticides with high insecticidal activity and relatively low potency in mammals. The influence of dosing volume on the neurobehavioral syndrome following oral acute exposure to the Type-I pyrethroid insecticide bifenthrin in corn oil was evaluated in adult male Long Evans rats. We tested bifenthrin effects at 1 and 5 ml/kg, two commonly used dose volumes in toxicological studies. Two testing times (4 and 7 h) were used in motor activity and functional observational battery (FOB) assessments. Four to eight doses were examined at either dosing condition (up to 20 or 26 mg/kg, at 1 and 5 ml/kg, respectively). Acute oral bifenthrin exposure produced toxic signs typical of Type I pyrethroids, with dose-related increases in fine tremor, decreased motor activity and grip strength, and increased pawing, head shaking, click response, and body temperature. Bifenthrin effects on motor activity and pyrethroid-specific clinical signs were approximately 2-fold more potent at 1 ml/kg than 5 ml/kg. This difference was clearly evident at 4 h and slightly attenuated at 7 h post-dosing. Benchmark dose (BMD) modeling estimated similar 2-fold potency differences in motor activity and pyrethroid-specific FOB data. These findings demonstrate that dose volume, in studies using corn oil as the vehicle influences bifenthrin potency. Further, these data suggest that inconsistent estimates of pyrethroid potency between laboratories are at least partially due to differences in dosing volume.
journal_name
Neurotoxicol Teratoljournal_title
Neurotoxicology and teratologyauthors
Wolansky MJ,McDaniel KL,Moser VC,Crofton KMdoi
10.1016/j.ntt.2007.01.007subject
Has Abstractpub_date
2007-05-01 00:00:00pages
377-84issue
3eissn
0892-0362issn
1872-9738pii
S0892-0362(07)00010-4journal_volume
29pub_type
杂志文章abstract：:Pregnant Sprague-Dawley CD rats were administered phenytoin by gavage on days 7-18 of gestation in doses of 0 or 200 mg/kg. Following completion of a series of behavioral tests (20), progeny (18 months of age) were examined for otoconia in the vestibular labyrinth of the inner ear. None of the controls (N = 22) had re...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/0892-0362(89)90073-1
更新日期：1989-05-01 00:00:00
abstract：UNLABELLED:This research examines the effects of different degrees of pesticide exposure on neuropsychological performance. Exposures varied from acute poisoning coupled with chronic exposure to low or high levels of chronic exposure (defined by years of exposure). A cross-sectional neuropsychological and biochemical s...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/j.ntt.2006.07.004
更新日期：2006-11-01 00:00:00
abstract：:Autism is a heterogeneous developmental disorder characterized by impaired social interaction, impaired communication skills, and restricted and repetitive behavior. The abnormal behaviors of these patients can make their anesthetic and perioperative management difficult. Evidence in the literature suggests that some ...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/j.ntt.2016.11.002
更新日期：2017-01-01 00:00:00
abstract：:Ethanol exposure on gestational day (GD) 7 in the mouse has previously been shown to result in ventromedian forebrain deficits along with facial anomalies characteristic of fetal alcohol syndrome (FAS). To further explore ethanol's teratogenic effect on the ventromedian forebrain in this mouse model, scanning electron...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/j.ntt.2010.11.001
更新日期：2011-03-01 00:00:00
abstract：:Previous work showed that rats develop tolerance to the acute behavioral effects of trichloroethylene (TCE) on signal detection if they inhale TCE while performing the task and that this tolerance depends more upon learning than upon changes in metabolism of TCE. The present study sought to characterize this tolerance...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/s0892-0362(01)00182-9
更新日期：2001-11-01 00:00:00
abstract：:A reduction in the activity of GABAA receptors, particularly α5 subunit-containing GABAA receptors (α5GABAARs), has been implicated in the etiology of Autism Spectrum Disorders (ASD). Genetically modified mice that lack α5GABAARs (Gabra5-/-) exhibit autism-like behaviors and both enhanced and impaired learning and mem...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/j.ntt.2016.10.009
更新日期：2017-05-01 00:00:00
abstract：:Brain-derived neurotrophic factor (BDNF) is a neurotrophin critical for many developmental and physiological aspects of CNS function. Severe hypothyroidism in the early neonatal period results in developmental and cognitive impairments and reductions in mRNA and protein expression of BDNF in a number of brain regions....
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/j.ntt.2011.04.001
更新日期：2011-07-01 00:00:00
abstract：:Evidence is presented showing that serial choice reaction performance is disrupted at low blood lead levels (PbB), and that parametric variation of task characteristics modulates the degree of disruption. This evidence is based on two independent studies in 6- to 9-year-old children living in two lead smelter areas in...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/0892-0362(89)90043-3
更新日期：1989-11-01 00:00:00
abstract：:Cigarette smoking in pregnant women has been shown to lead to intrauterine growth retardation and fetal death, and possibly also to neural dysmorphology and long-term learning deficits in the offspring. Because the teratogenic agent in cigarette smoke remains controversial, the present study on rat embryos in culture ...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/0892-0362(91)90076-9
更新日期：1991-05-01 00:00:00
abstract：:Methamphetamine (MA)-induced monoamine depletions in male and female Sprague-Dawley CD rats were studied under conditions in which the magnitude of MA-induced hyperthermia was comparable between the sexes. MA (5 or 10 mg/kg) or saline (3 ml/kg) was administered SC four times at 2-h intervals. Animals were sacrificed 3...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/s0892-0362(97)00094-9
更新日期：1998-07-01 00:00:00
abstract：:4-Nonylphenol (4-NP), an estrogen mimicking compound is produced by biodegradation of alkylethoxylates. It is well established that 4-NP can affect the development of aquatic animals by disrupting the endocrine signals. Here we show for the first time in zebrafish that 4-NP does not only target the neuroendocrine syst...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/j.ntt.2011.09.009
更新日期：2011-11-01 00:00:00
abstract：:The present study was aimed at investigating the long-term effects of prenatal exposure to lamivudine (3TC), an antiretroviral drug used in clinical practice alone or in combination with zidovudine (AZT) to prevent mother-to-child transmission of the HIV virus. Pregnant CD-1 mice were given per os twice daily either 3...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/s0892-0362(00)00063-5
更新日期：2000-05-01 00:00:00
abstract：:Male Fischer 344 rats received either tap water or water containing 250 ppm lead for 90 days prior to training in either Pavlovian fear conditioning or consummatory contrast, an aversive reward reduction paradigm. In Experiment 1, lead-exposed and -unexposed rats were trained in operant chambers over a 6-min session. ...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/s0892-0362(02)00265-9
更新日期：2002-07-01 00:00:00
abstract：:Numerous experiments have shown that the aromatic solvents can affect the auditory system in the rat, the cochlea being targeted first. Solvents differ in cochleotoxic potency: for example, styrene is more ototoxic than toluene or xylenes. The goal of this study was to determine the relative ototoxicity of the three i...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/j.ntt.2006.08.007
更新日期：2006-11-01 00:00:00
abstract：:The developmental neurotoxicity of organophosphates such as chlorpyrifos (CPF) involves multiple mechanisms that ultimately compromise the function of specific neurotransmitter systems, notably acetylcholine (ACh) and serotonin (5-hydroxytryptamine, 5HT). Studies in mammalian models incorporate both direct effects on ...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/j.ntt.2008.02.005
更新日期：2008-09-01 00:00:00
abstract：:Bromantan (N-[2-adamantil]-N-[para-bromphenyl]amine) is an "actoprotective" drug widely used in Russia as a muscle performance-enhancing agent for sportsmen and as an immunostimulator in medicine. Experiments were conducted to determine whether this compound has adverse effects on the reproduction and development of o...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/s0892-0362(01)00119-2
更新日期：2001-03-01 00:00:00
abstract：:The effects of repeated SC administration of soman on schedule-controlled performance and brain pathology were studied in the rat. Soman suppressed response rates in both components of a multiple fixed interval 50-sec fixed-ratio 25 (mult. FI 50-sec FR 25) schedule of reinforcement, although all animals revealed marke...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/0892-0362(90)90112-p
更新日期：1990-01-01 00:00:00
abstract：:A study of possible undue neurobehavioral effects of low-level lead exposure was performed in Danish school children who entered first grade in 1982. Lead absorption was found to relate to impaired psychological test performance and difficulties at school. However, this relationship was confounded by medical risk fact...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/0892-0362(88)90089-x
更新日期：1988-11-01 00:00:00
abstract：:Previous studies have indicated that prenatal ethanol (EtOH) exposure alters developing catecholamine (CA) systems and acute sensitivity to the locomotor stimulant effects of EtOH. The purpose of this study was to examine whether prenatal EtOH exposure influences the effects of the direct dopamine (DA) agonist apomorp...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/0892-0362(94)00055-i
更新日期：1995-01-01 00:00:00
abstract：:Toluene can be considered an ototoxic chemical compound in the rat. Outer hair cells are particularly sensitive to this aromatic organic solvent or to one of its metabolites. The objective of the present study was to evaluate the possible role played by cysteine S-conjugates in the ototoxic process in Long-Evans rats....
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/j.ntt.2008.02.006
更新日期：2008-05-01 00:00:00
abstract：:During 1991, the Middle Atlantic Reproduction and Teratology Association (MARTA) conducted a survey of laboratories performing behavioral evaluations as part of GLP developmental toxicity studies. This survey was conducted to determine the extent to which an "industry standard" had evolved for behavioral test batterie...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/0892-0362(94)90009-4
更新日期：1994-01-01 00:00:00
abstract：:In the present work, in vivo ROS formation and the activity of antioxidant enzymes in the hippocampus and the cerebellum of sodium metavanadate (NaVO₃) treated rats were studied. Rats were i.p. injected with 3 mg/kg bw/day (V₁ group) or with 7.2 mg/kg bw/day of NaVO₃ (V₂ group) for 5 consecutive days. Results show tha...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/j.ntt.2010.10.010
更新日期：2011-03-01 00:00:00
abstract：:The effects of administration by inhalation of metallic mercury vapour (Hg0) to pregnant rats, approximately corresponding to doses of 0.2 mg Hg0/kg/day (high dose) or 0.07 mg Hg0/kg/day (low dose), on the developmental and behavioural repertoire of the offspring were studied. Exposure occurred during days 11-14 plus ...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/0892-0362(93)90056-t
更新日期：1993-11-01 00:00:00
abstract：:Behavioral and neurochemical analyses were conducted on preweanling CD rats prenatally exposed to either 0, 0.375 or 0.750 mg/kg/day reserpine SC on gestation days 12-15. Offspring body weights were taken on test days, and pups were tested for negative geotaxis responding on postnatal day 8, developmental activity on ...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/0892-0362(89)90028-7
更新日期：1989-09-01 00:00:00
abstract：:Disruptive Behavior Disorders (DBD) exhibit a sex-biased prevalence rate favoring boys, and prenatal testosterone exposure appears to be part of the complex etiology of these disorders. The current study examines whether high prenatal testosterone exposure may heighten the risk for DBD symptoms in males by increasing ...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/j.ntt.2014.05.001
更新日期：2014-07-01 00:00:00
abstract：:Zebrafish provide a powerful model of the impacts of embryonic toxicant exposure on neural development that may result in long-term behavioral dysfunction. In this study, zebrafish embryos were treated with 1.5mM strychnine for short embryonic time windows to induce transient changes in inhibitory neural signaling, an...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/j.ntt.2012.08.001
更新日期：2012-11-01 00:00:00
abstract：:The study examines possible persisting effects on the peripheral nervous system and visual system in tunnel workers previously exposed to acrylamide and N-methylolacrylamide during grouting work. We compared neurophysiological function in 44 tunnel workers previously exposed during grouting operations (2-10 years post...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/j.ntt.2008.01.006
更新日期：2008-05-01 00:00:00
abstract：:The zebrafish is a powerful toxicity model; biochemical assays can be combined with observations at a structural and functional level within one individual. This mini review summarises the potency of zebrafish as a model for developmental neurotoxicity screening, and its possibilities to investigate working mechanisms...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章,评审
doi：10.1016/j.ntt.2012.08.006
更新日期：2012-11-01 00:00:00
abstract：:Neurotoxicity has been described in workers exposed to solvents, PCBs, certain metals, and polyaromatic hydrocarbons but not often in residents near refineries or factories. We compared the neurobehavioral performance of residents near a plant that reprocessed used motor oil and chemical waste from 1966-1983 to refere...
journal_title：Neurotoxicology and teratology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/0892-0362(94)00057-k
更新日期：1995-03-01 00:00:00
abstract：:The prevalence and magnitude of effect of individual risk markers for specific developmental disorders vary widely across diagnostic category. The four study cohorts for this project were patients from four diagnostic registries in North Dakota for fetal alcohol syndrome (FAS), autism, sudden infant death syndrome (SI...
journal_title：Neurotoxicology and teratology
pub_type： 杂志文章
doi：10.1016/j.ntt.2003.07.018
更新日期：2003-11-01 00:00:00
