Abstract:
:This study was undertaken to explore the effects of chronic low-level cadmium ingestion in Dahl hypertension-resistant (R) and hypertension-sensitive (S) lines of rats. Groups of weanling female R and S rats were given 0 or 1 mg cadmium/1. in drinking water and fed either a low salt (0.4% NaCl) or a high salt (4% NaCl) diet for 28 weeks. Cadmium produced hypertension associated with gross cardiac hypertrophy and mild to moderate renal vascular changes in S, but not in R, rats on a low salt diet. Cadmium enhanced the rate and degree of development of salt-induced hypertension without exacerbating the hypercholesterolemia or renal vascular lesions normally observed in S rats on a high salt diet. Cadmium lowered circulating cholesterol levels in both lines on a low salt diet. Cadmium had no influence on growth, blood urea nitrogen concentration, plasma renin activity, tumor formation, or survivorship in R and S rats on either salt diet. This study indicates that the genetic composition is a critical determinant of the adverse effects of chronic low-level cadmium ingestion in rats. In addition to the experimental implications, these findings may have relevance to the problem of human "essential" hypertension.
journal_name
Environ Health Perspectjournal_title
Environmental health perspectivesauthors
Ohanian EV,Iwai Jdoi
10.1289/ehp.7928261subject
Has Abstractpub_date
1979-02-01 00:00:00pages
261-6eissn
0091-6765issn
1552-9924journal_volume
28pub_type
杂志文章abstract::With the "graying of America," the prevalence of neurodegenerative diseases such as Alzheimer disease (AD) and Parkinson disease (PD) will make increasingly greater demands on Medicare/Medicaid resources, which will greatly strain the national economy. It is imperative that prevention and intervention strategies for t...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:
更新日期:1999-07-01 00:00:00
abstract::We present a case of a diamond polisher who developed occupational asthma as a result of prolonged exposure to various potent and well-recognized asthma-inducing agents, including cobalt dust. Although the patient was seen by various medical professionals during the initial course of his illness and given an early dia...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.011091303
更新日期:2001-12-01 00:00:00
abstract::Collaborative studies were performed to develop a functional assay for fish-killing activity produced by Pfiesteria piscicida. Eight cell lines were used to screen organic fractions and residual water fraction by using a 3-[4, 5-dimethylthiazol-(2-4)]-diphenyltetrazolium bromide cytotoxicity assay. Diethyl ether and a...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.99107711
更新日期:1999-09-01 00:00:00
abstract::Pheromones are substances emitted by one individual of a species and eliciting a specific response in a second individual of the same species. In moths (Lepidoptera) generally females lure males for mating by emission of a sex attractant pheromone comprised of either one or more components. Since 1966 the identificati...
journal_title:Environmental health perspectives
pub_type: 历史文章,杂志文章,评审
doi:10.1289/ehp.14-1475097
更新日期:1976-04-01 00:00:00
abstract::Many thousand organic compounds are in common use and new ones introduced daily. With many of these materials, little is known about their toxic hazard. For years scientists have been investigating the relation of structure and properties to biological activity. Among the factors relating to toxicity are bioaccumulati...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.793075
更新日期:1979-06-01 00:00:00
abstract::A wide range of chemicals with diverse structures derived from plant and environmental origins are reported to have hormonal activity. The potential for appreciable exposure of humans to such substances prompts the need to develop sensitive screening methods to quantitate and evaluate the risk to the public. Yeast cel...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.97105734
更新日期:1997-07-01 00:00:00
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 adul...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.5879
更新日期:2003-05-01 00:00:00
abstract::Polychlorinated biphenyls (PCBs) are persistent pollutants that are ubiquitous in the food chain, and detectable amounts are in the blood of almost every person in most populations that have been examined. Extensive evidence from animal studies shows that PCBs are neurotoxins, even at low doses. Interpretation of huma...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.5463
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND:THE APHENA (AIR POLLUTION AND HEALTH: A Combined European and North American Approach) study is a collaborative analysis of multicity time-series data on the effect of air pollution on population health, bringing together data from the European APHEA (Air Pollution and Health: A European Approach) and U.S. N...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.11345
更新日期:2008-11-01 00:00:00
abstract::The identification of certain organic compounds in drinking water has led water treatment specialists to be increasingly concerned about the eventual risks of such pollutants to the health of consumers. Our experiments focused on the role of ozone and granular activated carbon in removing mutagenic compounds and precu...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.8669159
更新日期:1986-11-01 00:00:00
abstract::We conducted experiments to determine whether diesel engine exhaust affects reproductive endocrine function in growing rats. The rats were assigned to three groups: a group exposed to total diesel engine exhaust containing 5.63 mg/m3 particulate matter, 4.10 ppm nitrogen dioxide, and 8.10 ppm nitrogen oxide; a group e...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.99107539
更新日期:1999-07-01 00:00:00
abstract:OBJECTIVE:The World Health Organization is the agency responsible for reporting the Millennium Development Goal (MDG) indicator "percentage of population using solid fuels." In this article, we present the results of a comprehensive assessment of solid fuel use, conducted in 2005, and discuss the implications of our fi...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.8603
更新日期:2006-03-01 00:00:00
abstract:BACKGROUND:In animals, some phthalates impair male reproductive development and function. Epidemiological studies have reported inconsistent evidence of associations between phthalates and markers of human testicular function. OBJECTIVES:We aimed to provide estimates of the effects of phthalate exposure on reproductiv...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.1205113
更新日期:2012-10-01 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::To analyze the implications for human health, the toxicologist requires four sets of data: the results of toxicity and other studies in animals; quantitative data on actual or potential human exposure; whatever information is available on effects of exposure in man; and the statistical extrapolations from the dose-res...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.7932273
更新日期:1979-10-01 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::A cohort of 12,110 male workers employed 1 or more years in eight styrene-butadiene polymer (SBR) manufacturing plants in the United States and Canada has been followed for mortality over a 40-year period, 1943 to 1982. The all-cause mortality of these workers was low [standardized mortality ratio (SMR) = 0.81] compar...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.9086107
更新日期:1990-06-01 00:00:00
abstract:BACKGROUND:Developmental exposure to polychlorinated biphenyls (PCBs) or methylmercury (MeHg) can result in a variety of neurotoxic effects, including long-term auditory deficits. However, little is known about the effects of combined exposure to PCBs and MeHg on auditory function. OBJECTIVE:We developmentally exposed...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.0800428
更新日期:2009-07-01 00:00:00
abstract::Human health and aquatic animal health are organically related at three distinct interfaces. Aquatic animals serve as important contributors to the nutritional protein, lipid, and vitamin requirements of humans; as carriers and transmitters of many infectious and parasitic diseases to which humans are susceptible; and...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.9086245
更新日期:1990-06-01 00:00:00
abstract::In response to potential threats to human health and fish populations, six states along the east coast of the United States initiated monitoring programs related to Pfiesteria-like organisms in 1998. These actions were taken in the wake of toxic outbreaks of Pfiesteria piscicida Steidinger & Burkholder in Maryland dur...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.01109s5711
更新日期:2001-10-01 00:00:00
abstract::Heat is the primary weather-related cause of death in the United States. Increasing heat and humidity, at least partially related to anthropogenic climate change, suggest that a long-term increase in heat-related mortality could occur. We calculated the annual excess mortality on days when apparent temperatures--an in...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.6336
更新日期:2003-11-01 00:00:00
abstract::This article briefly summarizes the epidemiology of the health effects of fine particulate air pollution, provides an early, somewhat speculative, discussion of the contribution of epidemiology to evaluating biologic mechanisms, and evaluates who's at risk or is susceptible to adverse health effects. Based on prelimin...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.108-1637679
更新日期:2000-08-01 00:00:00
abstract:BACKGROUND:Organophosphate flame retardants (PFRs) are becoming popular replacements for the phased-out polybrominated diphenyl ether (PBDE) mixtures, and they are now commonly detected in indoor environments. However, little is known about human exposure to PFRs because they cannot be easily measured in blood or serum...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.1408669
更新日期:2015-02-01 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::The tumor promoter 12-O-tetradecanoylphorbol-13-acetate (TPA) has highly pleiotropic effects on cells in culture and on tissues in vivo, including effects on protein kinase C (PKC) activation and gene expression. In order to determine the mechanism of activation of gene transcription by TPA, DNA sequences whose transc...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.877689
更新日期:1987-12-01 00:00:00
abstract::Inorganic particulate matter in foods and drugs is discussed from the standpoint of determination by optical microscopy, source, and regulatory significance. Some particulate matter may be generated as extraneous material and traced to specific operational practices during processing and production with excessive leve...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.749183
更新日期:1974-12-01 00:00:00
abstract::On 15-16 September 1997, the U.S. Environmental Protection Agency sponsored the Conference on Preventable Causes of Cancer in Children. The conference was convened to examine rising trends in reported incidence of childhood cancer and the association of these trends with environmental exposures. This paper summarizes ...
journal_title:Environmental health perspectives
pub_type:
doi:10.1289/ehp.98106867
更新日期:1998-06-01 00:00:00
abstract::This article provides an overview of methods for reliability assessment of quantitative structure-activity relationship (QSAR) models in the context of regulatory acceptance of human health and environmental QSARs. Useful diagnostic tools and data analytical approaches are highlighted and exemplified. Particular empha...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.5758
更新日期:2003-08-01 00:00:00
abstract::Although para-nonylphenol (NP) is known as an endocrine disruptor, the immunologic effect of NP has been poorly analyzed. We found that NP from 5 to 50 microM caused a dose-dependent stimulatory effect on the generation of reactive oxygen species (ROS) in human blood neutrophils, which was measured by using a chemilum...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.6584
更新日期:2004-04-01 00:00:00
abstract::Asthma and lead poisoning are prevalent among urban children in the United States. Lead exposure may be associated with excessive production of immunoglobulin E, possibly increasing asthma risk and contributing to racial disparities. The objective of this study was to examine racial differences in the association of b...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.7453
更新日期:2005-07-01 00:00:00