Abstract:
:It is necessary but not sufficient to develop laboratory animal models in sensory behavioral toxicology for screening toxic substances and for the analysis of sensory impairment at threshold levels of stimulation. It is important to develop more thorough and quantitative tests of impairment which in their greater complexity more accurately reflect the conditions and environmental demands of day-to-day life. Such greater complexity in stimulus conditions and behavior may also aid in monitoring not merely the state of the receptor organ but more central nervous processes which are the focus of assault by many known toxic substances. Techniques are described for studying such acoustic behaviors as intensity discrimination and frequency selectivity in guinea pig and monkey by use of operant conditioning procedures coupled with sensory testing (psychophysical) methods. Impaired auditory selectively and discrimination is shown to be correlated with histopathological changes in the inner ear. Slight modification of these procedures in animals may be used to investigate acoustically more intricate behaviors such as sound localization and the perception of frequency modulated acoustic signals as elements of speech and communication sounds.
journal_name
Environ Health Perspectjournal_title
Environmental health perspectivesauthors
Stebbins WCdoi
10.1289/ehp.824477subject
Has Abstractpub_date
1982-04-01 00:00:00pages
77-85eissn
0091-6765issn
1552-9924journal_volume
44pub_type
杂志文章abstract::High-performance liquid chromatography (HPLC) methods are described which permit the rapid isolation of multiple target macromolecules from the tissues of animals exposed to chemical mutagens. DNA and selected chromosomal proteins are isolated in a simple two step separation scheme. Isolated nuclei are dissolved in 3 ...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.856273
更新日期:1985-10-01 00:00:00
abstract::Many populations of amphibians are declining on all six continents on which they occur. Some causes of amphibian declines, such as habitat destruction, direct application of xenobiotics, and introduction of predators or competitors, are clearly attributable to human activities. Infectious disease appears to be the dir...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.00108s1143
更新日期:2000-03-01 00:00:00
abstract::Toxicologic diseases of man and animals, associated with molds growing on foods, have been recognized for centuries. Only in recent years, however, have these mycotoxicoses received the attention of many laboratories and skilled scientists around the world in a broad inter-disciplinary effort. This review covers the l...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.9-1475399
更新日期:1974-12-01 00:00:00
abstract::Molecular epidemiology has significant potential in preventing cancer and other diseases caused by environmental exposures (related to lifestyle, occupation, or ambient pollution). This approach attempts to prevent cancer by incorporating laboratory methods to document the molecular dose and preclinical effects of car...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.96104s3441
更新日期:1996-05-01 00:00:00
abstract:BACKGROUND:Diethylstilbestrol (DES) is a synthetic estrogen associated with adverse effects on reproductive organs. DES-induced toxicity of the mouse seminal vesicle (SV) is mediated by estrogen receptor α (ERα), which alters expression of seminal vesicle secretory protein IV (Svs4) and lactoferrin (Ltf) genes. OBJECT...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.1307351
更新日期:2014-03-01 00:00:00
abstract::The gas phase reactions of carbanions with molecular oxygen in both its ground state (X3 sigma g-) and first electronically excited state (a1 delta g) have been studied by the flowing afterglow technique. Reactions include cleavage processes, charge transfer, hydride transfer, formation of hydroxide ion and processes ...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.8036119
更新日期:1980-06-01 00:00:00
abstract:BACKGROUND:Hydraulically fractured wells produce 2-14 million liters of wastewater, which may contain toxic and radioactive compounds. The wastewater is predominantly disposed of using Class II injection wells. OBJECTIVE:Our objective was to evaluate the relationship between sociodemographic characteristics and inject...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/EHP2663
更新日期:2018-06-27 00:00:00
abstract::Over 250 adults and children were exposed to chlordane when the wooden building surfaces and soil around an apartment complex were sprayed in 1987. Two hundred-sixteen adults had neurobehavioral functions measured and completed questionnaires for symptom frequency, mood status, confounding factors, and medical, rheuma...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.95103690
更新日期:1995-07-01 00:00:00
abstract:BACKGROUND:Extreme heat events (EHEs) are increasing in frequency in large U.S. cities and are responsible for a greater annual number of climate-related fatalities, on average, than any other form of extreme weather. In addition, low-density, sprawling patterns of urban development have been associated with enhanced s...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.0901879
更新日期:2010-10-01 00:00:00
abstract::The instrumentation and practical circuitry required for the detection of negative ions exiting the mass analysis section of a mass spectrometer is examined. The potentials needed to bias the electron multiplier when detecting negative ions from a low ion-energy mass spectrometer, e.g., a quadrupole, are contrasted wi...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.803697
更新日期:1980-06-01 00:00:00
abstract:BACKGROUND:The Love Canal is a rectangular 16-acre, 10-ft deep chemical waste landfill situated in a residential neighborhood in Niagara Falls, New York. This seriously contaminated site first came to public attention in 1978. No studies have examined mortality in the former residents of the Love Canal neighborhood (LC...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.11350
更新日期:2009-02-01 00:00:00
abstract:BACKGROUND:Polychlorinated biphenyls (PCBs) may accelerate the cognitive and motor dysfunction found in normal aging, but few studies have examined these outcomes and PCB exposure among older adults. OBJECTIVE:We evaluated neuropsychological status and low-level PCB exposure among older adults living along contaminate...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.10432
更新日期:2008-02-01 00:00:00
abstract::This work group report addresses the central question: What are the critical windows during development (preconception through puberty) when exposure to xenobiotics may have the greatest adverse impact on subsequent reproductive health? The reproductive system develops in stages, with sex-specific organogenesis occurr...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.00108s3505
更新日期:2000-06-01 00:00:00
abstract::Exposure of rats to quartz (or various other particles) can lead to the development of lung tumors. At the moment, the mechanisms involved in particle-induced tumor formation are not clarified. However, it is suggested that inflammation, in conjunction with the production of reactive oxygen species (ROS) and an enhanc...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.97105s51291
更新日期:1997-09-01 00:00:00
abstract::Most air pollution in West Germany is caused by combustion products. Particulate organic matter released by incomplete combustion is suspected to contribute to the "urban factor" of lung cancer frequency in urban-industrial centers. The carcinogenic potential of single components, groups of compounds and total source ...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.8347293
更新日期:1983-01-01 00:00:00
abstract::The distribution of inhaled mineral fibers in the lung determines the site and severity of disease caused by the fibers. Some of our recent work has described the fate of inhaled asbestos fibers in rodents. After a brief inhalation exposure, asbestos fibers are deposited primarily at the first alveolar duct bifurcatio...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.94102s5197
更新日期:1994-10-01 00:00:00
abstract::The timing of some key embryological events is given for man, rat, chick, and certain other animals. Such times, however, are approximations, and variations occur among members of the same strain and even among members of the same litter. Some differences in developmental patterns are indicated. ...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.761855
更新日期:1976-12-01 00:00:00
abstract:BACKGROUND:Lead (Pb) exposure has been associated with a host of pathological conditions in humans. In rodents Pb exposure has been shown to alter the hypothalamic-pituitary-adrenal (HPA) axis function. OBJECTIVE:We investigated the effects of lead on responses of the HPA axis to a psychosocial laboratory stressor adm...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.1103873
更新日期:2012-02-01 00:00:00
abstract:BACKGROUND:Although public concern has focused on the environmental impact of the Deepwater Horizon oil spill, the public health impact on a broad range of coastal communities is minimally known. OBJECTIVE:We sought to determine the acute level of distress (depression, anxiety), mechanisms of adjustment (coping, resil...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.1002915
更新日期:2011-06-01 00:00:00
abstract::Aluminum lactate [Al(lact)3] (hydrophilic, hydrolytically unstable) and aluminum acetylacetonate [Al(acae)3] (lipophilic, hydrolytically stable) were tested as potential toxicants to rabbits upon IV administration both as aqueous solutions and as liposome suspensions. Both chemicals behaved as cardiotoxic agents when ...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.9089217
更新日期:1990-11-01 00:00:00
abstract::Human milk is a repository for certain classes of long-lived, fat-soluble environmental contaminant chemicals. Some members of this class, such as the chlorinated pesticides and the chlorinated biphenyls, can be expected to be present at chemical waste disposal sites. Analysis of samples of breast milk obtained from w...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.834887
更新日期:1983-02-01 00:00:00
abstract::Rats were instilled intrabronchially with 1 mg UICC amosite suspended in 0.2 mL of filtered saline; control animals received the saline instillation only. Five animals from each group were killed on various days after instillation, up to day 128/129. Total retrieved cell counts and differential cell analysis were perf...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.835141
更新日期:1983-09-01 00:00:00
abstract:BACKGROUND:Previous literature suggests that higher ambient temperature may play a role in increasing the risk of suicide. However, no multi-country study has explored the shape of the association and the role of moderate and extreme heat across different locations. OBJECTIVES:We examined the short-term temperature-su...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/EHP4898
更新日期:2019-11-01 00:00:00
abstract::Metallothionein (MT) promoter was methylated in rat hepatoma and in mouse lymphosarcoma cells by methylation of cytosine within the CpG dinucleotide region. After demethylation of MT-I promoter in mouse lymphosarcoma cells or in the transplanted rat hepatoma with 5-azacytidine, a potent inhibitor of DNA methyltransfer...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.02110s5827
更新日期:2002-10-01 00:00:00
abstract::A human lymphoblastoid cell line has been used to test for mutations caused by combustion-generated soot particles and their constituent components, which are substrate carbon-black and adsorbed condensate, principally in the form of polycyclic aromatic hydrocarbons (PAH). It was found that the mutagenicity of the PAH...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.9196239
更新日期:1991-12-01 00:00:00
abstract:BACKGROUND:Cockroaches and mice, which are common in urban homes, are sources of allergens capable of triggering asthma symptoms. Traditional pest control involves the use of scheduled applications of pesticides by professionals as well as pesticide use by residents. In contrast, integrated pest management (IPM) involv...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.0800149
更新日期:2009-08-01 00:00:00
abstract:BACKGROUND:Evidence indicates that air pollution contributes to cardiopulmonary mortality. There is ongoing debate regarding the size and shape of the pollution–mortality exposure–response relationship. There are also growing appeals for estimates of pollution–mortality relationships that use public data and are based ...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/EHP4438
更新日期:2019-07-01 00:00:00
abstract:BACKGROUND:Environmental air pollutants are inhaled as complex mixtures, but the long dominant focus of monitoring and research on individual pollutants has provided modest insight into pollutant interactions that may be important to health. Trends toward managing multiple pollutants to maximize aggregate health gains ...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.11654
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:Research often suffers from overspecialization, a practice nurtured in academia and reinforced by funders. Indeed, investigators in household air pollution (HAP) and water, sanitation and hygiene (WaSH), working in poor parts of the world, rarely interact despite having similar training and using similar met...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/EHP4752
更新日期:2019-02-01 00:00:00
abstract::The best evidence of an adverse human health effect is a properly conducted epidemiological study. But human beings should not be the sole test animal. Properly conducted animal studies have been shown to be preductive for carcinogenicity and toxicologic responses in human populations. We need to develop more efficien...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.7932297
更新日期:1979-10-01 00:00:00