Abstract:
:Exposure to low levels of chemicals indoors is often to a mixture of volatile organic compounds (VOCs). It is of interest to determine if the symptomatic and sensory responses can be attributed to a single chemical or to a mixture of chemicals. To determine if sensory or symptomatic responses differ with exposure to single or mixed VOCs, 100 female subjects participated in a 6-hr exposure study. Subjects were exposed to one of six equimolar concentrations equivalent to 24 mg/m3 toluene, control, m-xylene, n-butyl acetate, m-xylene plus n-butyl acetate, a mixture of 21 chemicals including n-butyl acetate and m-xylene, and to the same mixture of chemicals without n-butyl acetate and m-xylene (19 chemicals). The results indicated that there was no difference in reporting of symptoms or sensory responses between the exposures. When the control group was added, some variables, primarily odor intensity and nasal irritation, attained significance.
journal_name
Environ Health Perspectjournal_title
Environmental health perspectivesauthors
Prah JDdoi
10.1289/ehp.98106739subject
Has Abstractpub_date
1998-11-01 00:00:00pages
739-44issue
11eissn
0091-6765issn
1552-9924journal_volume
106pub_type
杂志文章abstract:OBJECTIVES:According to the 2007 National Research Council report Toxicology for the Twenty-First Century, modern methods (e.g., "omics," in vitro assays, high-throughput testing, computational methods) will lead to the emergence of a new approach to toxicology. The Salmonella mammalian microsome mutagenicity assay has...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.1002336
更新日期:2010-11-01 00:00:00
abstract:BACKGROUND:Despite evidence of atrazine toxicity in developing organisms from experimental studies, few studies--and fewer epidemiologic investigations--have examined the potential effects of prenatal exposure. OBJECTIVES:We assessed the association between adverse birth outcomes and urinary biomarkers of prenatal atr...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.1002775
更新日期:2011-07-01 00:00:00
abstract:BACKGROUND:When conducting research with American Indian tribes, informed consent beyond conventional institutional review board (IRB) review is needed because of the potential for adverse consequences at a community or governmental level that are unrecognized by academic researchers. OBJECTIVES:In this article, we re...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.1103904
更新日期:2012-01-01 00:00:00
abstract::The neurochemical basis of memory has been approached experimentally in four different ways: the bioassay; the interventive approach; the interventive-correlative approach; and the correlative approach. These approaches are fundamentally similar to those used for the study of the chemistry of any behavior. Each of the...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.7826143
更新日期:1978-10-01 00:00:00
abstract:BACKGROUND:Traffic-related air pollution is emerging as a risk factor for Alzheimer's disease (AD) and impaired brain development. Individual differences in vulnerability to air pollution may involve the ε4 allele of Apolipoprotein E (APOE) gene, the primary genetic risk factor for AD. OBJECTIVE:We analyzed whether th...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/EHP2246
更新日期:2018-08-02 00:00:00
abstract:BACKGROUND:Hepatocellular carcinoma (HCC), or liver cancer, is the third leading cause of cancer deaths worldwide, with prevalence 16-32 times higher in developing countries than in developed countries. Aflatoxin, a contaminant produced by the fungi Aspergillus flavus and Aspergillus parasiticus in maize and nuts, is a...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.0901388
更新日期:2010-06-01 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::Counties in the United States have been identified with chemical establishments whose primary manufacturing processes use vinyl chloride. Site-specific cancer mortality comparisons have revealed an excess of multiple myeloma in males associated with two of the manufacturing categories, synthetic rubber and synthetic f...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.751179
更新日期:1975-06-01 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:BACKGROUND:Although numerous epidemiologic studies now use models of intraurban exposure, there has been little systematic evaluation of the performance of different models. OBJECTIVES:In this present article we proposed a modeling framework for assessing exposure model performance and the role of spatial autocorrelat...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.9849
更新日期:2007-08-01 00:00:00
abstract:BACKGROUND:Chronic exposure to well water arsenic (As) remains a major rural health challenge in Bangladesh and some other developing countries. Many mitigation programs have been implemented to reduce As exposure, although evaluation studies for these efforts are rare in the literature. OBJECTIVES:In this study we es...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.1409462
更新日期:2015-12-01 00:00:00
abstract:BACKGROUND:Glycol ethers (GE) are widely used organic solvents. Despite the potential neurotoxicity of several families of organic solvents, little is known about the impact of GE on the neurodevelopment of infants and children. OBJECTIVES:We investigated the relation between urinary concentrations of GE metabolites i...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/EHP39
更新日期:2017-04-01 00:00:00
abstract::A few animal studies on the possible carcinogenic effect of magnetic fields have been published. They have been designed to reveal a possible tumor promotion obtained by applying continuous or pulsed alternating fields at flux densities varying between 0.5 microT and 30 mT on mice or rats initiated with different init...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.95103s263
更新日期:1995-03-01 00:00:00
abstract::The Sertoli cell is the primary target for FSH action in the mammalian testis. These cells contain the majority of testicular plasma membrane receptors for this hormone. Receptor occupancy is directly correlated with a stimulation of adenylyl cyclase and a decrease in the activity of a cytoplasmic Ca++-sensitive cAMP ...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.81385
更新日期:1981-04-01 00:00:00
abstract::Atlantic coast estuaries recently have experienced fish kills and fish with lesions attributed to Pfiesteria piscicida and related dinoflagellates. Human health effects have been reported from laboratory exposure and from a 1997 Maryland fish kill. North Carolina has recorded Pfiesteria-related fish kill events over t...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.0110921
更新日期:2001-01-01 00:00:00
abstract:BACKGROUND:In a 1994 Ninth Circuit decision on the remand of Daubert v. Merrell Dow Pharmaceuticals, Inc., Judge Alex Kosinski wrote that science done for the purpose of litigation should be subject to more stringent standards of admissibility than other science. OBJECTIVES:We analyze this proposition by considering l...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.9987
更新日期:2008-01-01 00:00:00
abstract::Di(2-ethylhexyl) phthalate (DEHP) is used to make polyvinyl chloride (PVC) plastic tubing soft and flexible. Animal data show that adverse effects of DEHP exposure may include reduced fertility, reduced sperm production in males, and ovarian dysfunction in females. Known treatments that involve high DEHP exposures are...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.6901
更新日期:2004-09-01 00:00:00
abstract::Metallothionein from livers of mice was isolated by gel chromatography and isoelectric focusing. One of two forms thus obtained contained 32 percent cysteine. This form, labeled in vitro with 109Cd, was injected intravenously in mice, and the distribution of 109Cd was studied. Animals killed after 4 hrs had over 80 pe...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.7512103
更新日期:1975-12-01 00:00:00
abstract:BACKGROUND:Particulate matter (PM) in outdoor air pollution was recently designated a Group I carcinogen by the International Agency for Research on Cancer (IARC). This determination was based on the evidence regarding the relationship of PM2.5 and PM10 to lung cancer risk; however, the IARC evaluation did not include ...
journal_title:Environmental health perspectives
pub_type: 杂志文章,meta分析,评审
doi:10.1289/ehp/1408092
更新日期:2014-09-01 00:00:00
abstract::Although press reports indicate that the leakage of methyl isocyanate (MIC) on December 3, 1984, in Bhopal has led to an increase in spontaneous abortions, stillbirths, infant mortality, and fetal abnormalities, no clinical or experimental studies on the reproductive toxicity of MIC were reported in scientific journal...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.8772153
更新日期:1987-06-01 00:00:00
abstract:BACKGROUND:The World Health Organization (WHO) released the fourth edition of Guidelines for Drinking-Water Quality in July 2011. In this edition, the 400-µg/L drinking-water guideline for manganese (Mn) was discontinued with the assertion that because "this health-based value is well above concentrations of manganese ...
journal_title:Environmental health perspectives
pub_type: 历史文章,杂志文章
doi:10.1289/ehp.1104693
更新日期:2012-06-01 00:00:00
abstract::There is accumulating evidence that the multistage carcinogenic process is associated with the progressive acquisition of mutations in cellular proto-oncogenes and in growth-suppressor genes. At the same time, several types of evidence indicate that nongenotoxic agents and epigenetic events also play an important role...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.9193175
更新日期:1991-06-01 00:00:00
abstract::In recent years, it has become apparent that minerals can trigger alterations in gene expression by initiating signaling events upstream of gene transactivation. These cascades may be initiated at the cell surface after interaction of minerals with the plasma membrane either through receptorlike mechanisms or integrin...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.97105s51121
更新日期:1997-09-01 00:00:00
abstract::Under a mandate from the U.S. Congress, the National Toxicology Program (NTP) of the U.S. Department of Health and Human Services conducts animal bioassays for carcinogenicity of potentially toxic chemicals to which the U.S. population might be exposed. Methyleugenol, a natural as well as synthesized substance, was no...
journal_title:Environmental health perspectives
pub_type: 临床试验,杂志文章
doi:10.1289/ehp.6766
更新日期:2004-05-01 00:00:00
abstract::Many naturally occurring and man-made chemicals present in the environment possess estrogenic activity. Examples include plant and fungal products, pesticides, plasticizers, and other agricultural and industrial chemicals. These environmental estrogens as well as endogenous ovarian estrogens are thought to initiate th...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.95103s729
更新日期:1995-10-01 00:00:00
abstract::Haloalkane toxicity originates from attack on biological targets by reactive intermediates derived from haloalkane metabolism by a hemoprotein, cytochrome P-450. Carbon-centered radicals and their peroxyl derivatives are most likely involved. The reactions of iron porphyrin--a model for cytochrome P-450--with various ...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.856453
更新日期:1985-12-01 00:00:00
abstract::The normal mucociliary epithelium of the respiratory tract in chronic cigarette smokers often is replaced focally by a metaplastic squamous epithelium. Because asbestos workers who smoke have a substantially greater risk of bronchogenic carcinoma than nonsmokers, we hypothesized that interaction of asbestos with squam...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.835127
更新日期:1983-09-01 00:00:00
abstract::At picomolar concentrations, lead activates protein kinase C (PKC). This activation has been implicated in the neurotoxicity of lead. No prior study has evaluated the association of PKC activity with neurobehavioral function in humans. The purpose of this study was to determine whether PKC activity is associated with ...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.02110133
更新日期:2002-02-01 00:00:00
abstract::An association between human illness and exposure to Pfiesteria was first observed among laboratory personnel working with the microorganism. In 1997, in the setting of Pfiesteria activity on the Pocomoke River in Maryland, difficulties with learning and memory were epidemiologically associated with high-level exposur...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.01109s5787
更新日期:2001-10-01 00:00:00
abstract::We found an epidemic of juvenile hypothyroidism among a population of self-defined "downwinders" living near the Hanford nuclear facility located in southeast Washington State. The episode followed massive releases of 131I. Self-reported data on 60 cases of juvenile hypothyroidism (<20 years of age) among a group of 8...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.99107303
更新日期:1999-04-01 00:00:00