Abstract:
:There is widespread concern regarding the safety of silver-mercury amalgam dental restorations, yet little evidence to support their harm or safety. We examined whether mercury dental amalgams are adversely associated with cognitive functioning in a cross-sectional sample of healthy working adults. We studied 550 adults, 30-49 years of age, who were not occupationally exposed to mercury. Participants were representative of employees at a major urban medical center. Each participant underwent a neuropsychologic test battery, a structured questionnaire, a modified dental examination, and collection of blood and urine samples. Mercury exposure was assessed using a) urinary mercury concentration (UHg); b) the total number of amalgam surfaces; and c) the number of occlusal amalgam surfaces. Linear regression analysis was used to estimate associations between each marker of mercury exposure and each neuropsychologic test, adjusting for potential confounding variables. Exposure levels were relatively low. The mean UHg was 1.7 micro g/g creatinine (range, 0.09-17.8); the mean total number of amalgam surfaces was 10.6 (range, 0-46) and the mean number of occlusal amalgam surfaces was 6.1 (range, 0-19). No measure of exposure was significantly associated with the scores on any neuropsychologic test in analyses that adjusted for the sampling design and other covariates. In a sample of healthy working adults, mercury exposure derived from dental amalgam restorations was not associated with any detectable deficits in cognitive or fine motor functioning.
journal_name
Environ Health Perspectjournal_title
Environmental health perspectivesauthors
Factor-Litvak P,Hasselgren G,Jacobs D,Begg M,Kline J,Geier J,Mervish N,Schoenholtz S,Graziano Jdoi
10.1289/ehp.5879subject
Has Abstractpub_date
2003-05-01 00:00:00pages
719-23issue
5eissn
0091-6765issn
1552-9924journal_volume
111pub_type
杂志文章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
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.11502
更新日期:2009-02-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.866755
更新日期:1986-08-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.85-1568347
更新日期:1990-04-01 00:00:00
abstract::The effects of chrysotile on DNA synthesis in the gastrointestinal tract of the rat were studied by measuring the uptake of tritium-labeled thymidine; whole stomach, small intestine, colon liver were removed, cleaned, and homogenized and the DNA was isolated and assayed for tritium label.A dose-response study indicate...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.749319
更新日期:1974-12-01 00:00:00
abstract:BACKGROUND:Health risks differ by fine particle (aerodynamic diameter ≤ 2.5 μm) component, although with substantial variability. Traditional methods to assess component-specific risks are limited, suggesting the need for alternative methods. OBJECTIVES:We examined whether the odds of daily hospital admissions differ ...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.1002646
更新日期:2011-10-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.98106175
更新日期:1998-04-01 00:00:00
abstract::The Tradescantia genetic system developed by the late Dr. Arnold H. Sparrow for the study of effects of ionizing radiation is applicable to chemical mutagen detection. Early radiobiological data demonstrated that the stamen hairs were sensitive to as little as 0.25 rad of x-rays and that the number of cells showing a ...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.782751
更新日期:1978-12-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.1307741
更新日期:2014-10-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.98106597
更新日期:1998-09-01 00:00:00
abstract:BACKGROUND:Bisphenol A (BPA) is known to be biologically active in experimental models even at low levels of exposure. However, its impact on endometrial cancer remains unclear. OBJECTIVES:This study aimed to investigate whether lifelong exposure to different doses of BPA induced uterine abnormalities and molecular ch...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/EHP6875
更新日期:2020-12-01 00:00:00
abstract:BACKGROUND:Radon is the second-leading cause of lung cancer worldwide. Most indoor exposure occurs by diffusion of soil gas. Radon is also found in well water, natural gas, and ambient air. Pennsylvania has high indoor radon concentrations; buildings are often tested during real estate transactions, with results report...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.1409014
更新日期:2015-11-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.782237
更新日期:1978-02-01 00:00:00
abstract::With this research I tested the hypothesis that individual preferences for specific ecosystem components and restorative environments are significantly associated with quality of life (QOL). A total of 379 human subjects responded to a structured 18-item questionnaire on topophilia and to the 26-item World Health Orga...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.7467
更新日期:2005-02-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.02110939
更新日期:2002-09-01 00:00:00
abstract::In recent years, exposure of man to increasing amounts of metals has occurred rather generally from industrial contamination and variably from intake of dietary mineral supplements. Adverse effects of individual metals can be markedly altered by dietary levels of other essential and nonessential inorganic elements, es...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.7825137
更新日期:1978-08-01 00:00:00
abstract:BACKGROUND:Early-life exposure to lead is associated with deficits in neurodevelopment and with hematopoietic system toxicity. DNA methylation may be one of the underlying mechanisms for the adverse effects of prenatal lead on the offspring, but epigenome-wide methylation data for low levels of prenatal lead exposure a...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/EHP1246
更新日期:2017-08-25 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.93101510
更新日期:1993-11-01 00:00:00
abstract::N-Substituted aromatic compounds can be metabolized in most species to N-acetylated derivatives that are themselves subject to further enzymatic transformations, including hydrolysis and N,O-acyltransfer. These proceses can either potentiate or ameliorate the biological responses to these N-substituted derivatives. De...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.834943
更新日期:1983-03-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.97105s2457
更新日期:1997-03-01 00:00:00
abstract:BACKGROUND:Prospective cohort studies constitute the major source of evidence about the mortality effects of chronic exposure to particulate air pollution. Additional studies are needed to provide evidence on the health effects of chronic exposure to particulate matter < or = 2.5 microm in aerodynamic diameter (PM(2.5)...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.11449
更新日期:2008-12-01 00:00:00
abstract:BACKGROUND:Polybrominated diphenyl ethers (PBDEs) are persistent chemicals that have been widely used as flame retardants in furniture, carpet padding, car seats, and other consumer products during the past three decades. OBJECTIVE:We examined whether in utero exposure to PBDEs is associated with child cognitive funct...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.1307562
更新日期:2014-08-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.1408302
更新日期:2015-05-01 00:00:00
abstract::The effects of DEHP on sperm morphology and on peripheral blood micronuclei were studied for 12 weeks following five subacute IP injections of DEHP at 1/6, 1/12, and 1/60 of the LD50 per day. Sperm morphology was examined in both adult mice and rats, while peripheral blood micronuclei were scored in mice up to 4 weeks...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.8665255
更新日期:1986-03-01 00:00:00
abstract::Heightened concern over endocrine-disrupting chemicals is driven by the hypothesis that they could reduce reproductive success and affect wildlife populations, but there is little evidence for this expectation. The pharmaceutical ethynylestradiol (EE2) is a potent endocrine modulator and is present in the aquatic envi...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.7209
更新日期:2004-12-01 00:00:00
abstract::The role of cell-specific metabolism in benzene toxicity was examined in both murine and human bone marrow. Hemopoietic progenitor cells and stromal cells are important control points for regulation of hemopoiesis. We show that the selective toxicity of hydroquinone at the level of the macrophage in murine bone marrow...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.961041177
更新日期:1996-12-01 00:00:00
abstract::A subset of workers was followed after exposure to polychlorinated biphenyls (PCBs), dioxins, and furans in an occupational medicine clinic setting. Patterns of PCBs found in adipose tissue resembled the pattern seen when soot from the incident or Aroclor 1254 was examined by GC-MS. Adipose tissue also revealed levels...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.8560241
更新日期:1985-05-01 00:00:00
abstract::Millions of people worldwide are exposed to arsenic-contaminated drinking water, and ingestion of inorganic arsenic (InAs) has been associated with increased risks of cancer. The primary metabolic pathway of ingested InAs is methylation to monomethyl arsenic (MMA) and dimethyl arsenic (DMA). However, people vary great...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.7907
更新日期:2005-09-01 00:00:00
abstract::The many anatomical, physiological, and biochemical differences among various mammalian species make it difficult to extrapolate carcinogenic potency data from animals to humans. The process is further complicated by the multistep origin of most malignant tumors in animals and humans due to the interaction of target c...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.887773
更新日期:1988-04-01 00:00:00
abstract::Several organophosphate and organochlorine compounds, including pesticides commonly found in the Great Lakes basin, have the potential to induce immunotoxicity. Because of biomagnification and accumulation in the food chain, Great Lakes residents may inadvertently be exposed to these compounds and thus face increased ...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.95103s955
更新日期:1995-12-01 00:00:00