abstract：:A review of the literature is provided for the topic of health-related research and power frequency electromagnetic fields. Minimal evidence for concern is present on the basis of animal and plant research. General observation would accord with the implication that there is no single and manifest health effect as the ...

journal_title：Environmental health perspectives

authors： Aldrich TE,Easterly CE

更新日期：1987-11-01 00:00:00

abstract：:The National Cancer Institute (NCI) and the National Toxicology Program (NTP) have carried out a number of laboratory animal carcinogenicity studies and presented the results of these experiments in a series of Technical Reports. This paper tabulates the results of the 327 NCI/NTP studies carried out to date on 308 di...

journal_title：Environmental health perspectives

authors： Haseman JK,Huff JE,Zeiger E,McConnell EE

更新日期：1987-10-01 00:00:00

abstract：:In most neurotoxicological studies morphological assessment focuses on pathological effects, like degenerative changes in neuronal perikarya, axonopathy, demyelination, and glial and endothelial cell reactions. Similarly, the assessment of physiological and behavioral effects center on evident neurological symptoms, l...

journal_title：Environmental health perspectives

authors： Altman J

更新日期：1987-10-01 00:00:00

abstract：:Germ-line mutations of the mouse have for years comprised one class of biological markers for mammalian reproductive and developmental toxicology. Understanding the molecular nature of mutations and the mechanisms by which mutations are translated into specific (and often complex) phenotypes, however, still looms as a...

journal_title：Environmental health perspectives

authors： Rinchik EM

更新日期：1987-10-01 00:00:00

abstract：:Present available information regarding ovarian tumors in hens is incomplete in most aspects, and this lack of knowledge hampers use of hens as models for study of ovarian cancer. A study of 466 hens ranging from 2 to 7 years of age and covering a period of more than 3 years has provided much needed information relati...

journal_title：Environmental health perspectives

authors： Fredrickson TN

更新日期：1987-08-01 00:00:00

abstract：:Rats continuously exposed to NO2 at 0.04, 0.4, and 4.0 ppm for as long as 27 months were submitted to morphological observation and electronmicroscopic morphometry of the lung. At 4 ppm exposure for 9 months, bronchial epithelium showed typical proliferation, which progressed further at 18 months. At this stage, proli...

journal_title：Environmental health perspectives

authors： Kubota K,Murakami M,Takenaka S,Kawai K,Kyono H

更新日期：1987-08-01 00:00:00

abstract：:Nicotine and cigarette smoke extract show acute physiological effects: increasing tracheal pressure (PTR), pulmonary artery pressure (PPA), systemic blood pressure (PSYST), and left atrium pressure (PLA); and decreasing cardiac output (QAORTA) and blood flow to the left lower lobe (QLLL). In addition, cigarette smokin...

journal_title：Environmental health perspectives

authors： Kitamura S

更新日期：1987-06-01 00:00:00

abstract：:Whole blood oxygen equilibrium curves (O2 ECs), blood buffer lines, and several hematologic properties were determined for adult guinea pigs exposed to 700 ppm methyl isocyanate (MIC) for 15 min. MIC inhalation effected a significant reduction of blood O2 affinity; the half-saturation pressure (P50) at 38 degrees C in...

journal_title：Environmental health perspectives

authors： Maginniss LA,Szewczak JM,Troup CM

更新日期：1987-06-01 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

authors： Varma DR

更新日期：1987-06-01 00:00:00

abstract：:Implementation of the Toxic Substances Control Act of 1977 creates the need to reliably establish testing priorities because laboratory resources are limited and the number of industrial chemicals requiring evaluation is overwhelming. The use of quantitative structure activity relationship (QSAR) models as rapid and p...

journal_title：Environmental health perspectives

authors： McKim JM,Bradbury SP,Niemi GJ

更新日期：1987-04-01 00:00:00

abstract：:This study constitutes one part of a program for assessing the impact of coal-fired power plants on the surrounding communities. A questionnaire was mailed to a total of 12,000 subjects living in six areas with coal-fired plants and in matched reference areas. The participation rate was 77.3%. In one coal-fired plant/...

journal_title：Environmental health perspectives

authors： Pershagen G,Hammar N,Vartiainen E

更新日期：1986-12-01 00:00:00

abstract：:The potential impact of an agent altering male reproductive function is greater for humans than for animals. Consequently, it is essential that sensitive criteria be used to look for effects on a multiplicity of target sites when an agent is evaluated using an animal model. No animal model has reproductive characteris...

journal_title：Environmental health perspectives

authors： Amann RP

更新日期：1986-12-01 00:00:00

abstract：:The chlorinated hydrocarbons chloroform (CHCl3), 1,1-dichlorethane (1,1-DCE) and 1,2-dichloroethane (1,2-DCE) have been detected in finished drinking water. When administered to B6C3F1 mice by gavage in corn oil, these compounds have been shown to induce hepatic tumors. The present study examines the effect on liver t...

journal_title：Environmental health perspectives

authors： Klaunig JE,Ruch RJ,Pereira MA

更新日期：1986-11-01 00:00:00

abstract：:Chlorination has been the major strategy for disinfection of drinking water in the United States. Concern about the potential health effects of the reaction by-products of chlorine has prompted use of alternative strategies. One such method is chloramination, a treatment process that does not appear to have carcinogen...

journal_title：Environmental health perspectives

authors： Zierler S,Danley RA,Feingold L

更新日期：1986-11-01 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

authors： Bourbigot MM,Hascoet MC,Levi Y,Erb F,Pommery N

更新日期：1986-11-01 00:00:00

abstract：:Granular activated carbon (GAC), in the presence of dilute aqueous hypochlorite solutions typical of those used in water treatment, was converted to a reagent capable of carrying out free-radical coupling reactions and other oxidations of dilute aqueous solutions of phenols. The products included biphenyls with chlori...

journal_title：Environmental health perspectives

authors： Voudrias EA,Larson RA,Snoeyink VL,Chen AS,Stapleton PL

更新日期：1986-11-01 00:00:00

abstract：:Grafting experiments show that the enhanced sensitivity of the SENCAR mouse to skin carcinogenesis by initiation and promotion is a property of the skin itself, suggesting the usefulness of in vitro studies to elucidate the mechanism. Such studies have indicated that cultured epidermal cells of SENCAR mice and the res...

journal_title：Environmental health perspectives

authors： Strickland JE,Allen PT,Sauder DN,Kawamura H,Fong MC,Yuspa SH

更新日期：1986-09-01 00:00:00

abstract：:Groups of female SENCAR or BALB/c mice were initiated once intraperitoneally with 300 micrograms/mouse of 7,12-dimethylbenz(a)anthracene (DMBA) or 20 mg/mouse of urethane at 7 weeks of age. Beginning one week later, mice received topically applied acetone or 12-O-tetradecanoylphorbol-13-acetate (TPA), once weekly, at ...

journal_title：Environmental health perspectives

authors： Ward JM,Rehm S,Devor D,Hennings H,Wenk ML

更新日期：1986-09-01 00:00:00

abstract：:Cooking, heat processing, or pyrolysis of protein-rich foods induce the formation of a series of structurally related heterocyclic aromatic bases that have been found to be mutagens. The primary genetic assay utilized to detect and isolate these mutagens has been the his reversion assay in Salmonella typhimurium. The ...

journal_title：Environmental health perspectives

authors： Hatch FT

更新日期：1986-08-01 00:00:00

abstract：:We have demonstrated that the pyrolysis products of amino acids and proteins in model systems are mutagenic. The mutagenic principles in the pyrolyzates of amino acids have been isolated and identified by Sugimura et al. We have isolated and identified amino-alpha-carbolines from pyrolyzed soybean globulin as mutagens...

journal_title：Environmental health perspectives

authors： Yoshida D,Matsumoto T,Okamoto H,Mizusaki S,Kushi A,Fukuhara Y

更新日期：1986-08-01 00:00:00

abstract：:To elucidate the effect of intake of mutagenic and/or carcinogenic pyrolysis products of proteins and amino acids on carcinogenesis in man, we have undertaken two epidemiologic cohort studies: one concerning the possible association of broiled fish consumption with cancer and the other concerning the cancer mortality ...

journal_title：Environmental health perspectives

authors： Kuratsune M,Ikeda M,Hayashi T

更新日期：1986-08-01 00:00:00

abstract：:The problem of byssinosis has plagued cotton textile mills for hundreds of years, and it is still a problem today. With the regulations on airborne raw cotton dust set by OSHA and the ACGIH, research regarding the measurement of cotton dust in lint fiber is a necessity. A procedure known as the mass concentration part...

journal_title：Environmental health perspectives

authors： Parnell CB Jr,Niles GA,Rutherford RD

更新日期：1986-04-01 00:00:00

abstract：:The presence of mycotoxins in grains is well documented. Workers in grain handling occupations are commonly exposed to grain dust aerosols. Work in our laboratory has shown that T-2 toxin is highly toxic to rat alveolar macrophages in vitro, causing loss of viability, release of radiolabeled chromium, inhibition of ma...

journal_title：Environmental health perspectives

authors： Sorenson WG,Gerberick GF,Lewis DM,Castranova V

更新日期：1986-04-01 00:00:00

abstract：:It was considered that the fall in lung function seen after exposure to cotton dust may be attributable in part to the activity of arachidonic acid metabolites, such as leucotrienes as well as to the more established release of histamine by cotton dust. However, we found that cotton and barley dusts elicited poor rele...

journal_title：Environmental health perspectives

authors： Thomson TA,Edwards JH,Al-Zubaidy TS,Brown RC,Poole A,Nicholls PJ

更新日期：1986-04-01 00:00:00

abstract：:The physiological function of copper(I)-metallothionein is not well understood. The respiratory function of hemocyanin, a copper(I)-containing respiratory protein found in the hemolymph of many invertebrates, has been known a long time. However, the mechanism by which Cu(I) is inserted into the oxygen-binding site of ...

journal_title：Environmental health perspectives

authors： Brouwer M,Whaling P,Engel DW

更新日期：1986-03-01 00:00:00

abstract：:A comprehensive environmental fate and effects testing program, sponsored by the Chemical Manufacturers Association (CMA) Phthalate Esters Program Panel, has been completed. Based on the results, a preliminary safety assessment has shown that all of the 14 commercially important phthalates tested have sufficiently hig...

journal_title：Environmental health perspectives

authors： Group EF Jr

更新日期：1986-03-01 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

authors： Douglas GR,Hugenholtz AP,Blakey DH

更新日期：1986-03-01 00:00:00

abstract：:Exposure of the scallop Placopecten magellanicus to 20 ppb Cd2+ in seawater for 7 weeks results in a 7-fold increase in the kidney cytosol content of Cd and 5-fold increase in Zn. Sephadex G-75 column chromatography of the kidney cytosol showed that most of the Cd and Zn were bound to a protein complex with an estimat...

journal_title：Environmental health perspectives

authors： Fowler BA,Megginson MM

更新日期：1986-03-01 00:00:00

abstract：:The occurrence of high cadmium levels in the digestive gland (hepatopancreas) of the crab Cancer pagurus is reviewed and its possible significance to human health is discussed. Previous attempts to isolate this cadmium in its native form are briefly reviewed and the present method used in this laboratory to isolate cr...

journal_title：Environmental health perspectives

authors： Overnell J

更新日期：1986-03-01 00:00:00

abstract：:Nitroaromatic compounds, ArNO2 have widespread actual or potential use in medicine and cancer therapy. There is direct proof that free-radical metabolites are involved in many applications, and an appreciation of the conceptual basis for their therapeutic differential; however, an understanding of the detailed mechani...

journal_title：Environmental health perspectives

authors： Wardman P

更新日期：1985-12-01 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

authors： Brault D

更新日期：1985-12-01 00:00:00

abstract：:Free-radical metabolites can be generated metabolically by a one-electron reductase-catalyzed reaction or a "peroxidase" catalyzed oxidation or by photoactivation of a wide variety of aromatic xenobiotics. Radicals may also be generated during lipid peroxidation. Some radicals can react with DNA or bind covalently or ...

journal_title：Environmental health perspectives

authors： O'Brien PJ

更新日期：1985-12-01 00:00:00

abstract：:Alzheimer's disease is a progressive degenerative brain disease of unknown etiology, characterized by the development of large numbers of neurofibrillary tangles and senile plaques in the brain. Aluminum salts may be used experimentally to produce lesions which are similar, but not identical, to the neurofibrillary ta...

journal_title：Environmental health perspectives

authors： Perl DP

更新日期：1985-11-01 00:00:00

abstract：:Factors affecting the design of an epidemiologic study assessing possible health effects from chemical waste disposal sites are reviewed. Such epidemiologic studies will most likely be prompted either by a known release of chemicals into the environment around the site, or by an unusual disease cluster in a population...

journal_title：Environmental health perspectives

authors： Buffler PA,Crane M,Key MM

更新日期：1985-10-01 00:00:00

abstract：:Studies of DNA base sequence alterations have shown that for every agent the mutagenic process is specific with respect to the types of base changes induced and the location of the changes in the DNA. Analysis of the types of mutations produced by mutagenic agents can provide insight into the mechanism of mutation and...

journal_title：Environmental health perspectives

authors： Skopek TR,Wood RD,Hutchinson F

更新日期：1985-10-01 00:00:00

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

authors： Balhorn R,Mazrimas JA,Corzett M

更新日期：1985-10-01 00:00:00

abstract：:Congress has demonstrated interest in toxic compensation legislation, but not enough agreement to make significant progress. Advocates of reform claim that the legal system is heavily weighed against victims who seek compensation through the courts. Proposed reforms include a compensation fund and a cause of action in...

journal_title：Environmental health perspectives

authors： Anderson RC

更新日期：1985-10-01 00:00:00

abstract：:The National Center for Health Statistics (NCHS) conducts a variety of surveys designed to provide cross-sectional estimates of the prevalence of various factors measuring the health of Americans. When these cross-sectional estimates are put together and plotted over time, they provide a picture of the trends in the h...

journal_title：Environmental health perspectives

authors： Feinleib M,Wilson RW

更新日期：1985-10-01 00:00:00

abstract：:An impressive array of evidence has been obtained during the past decade establishing correlations between specific DNA adducts and carcinogenesis. Many of the studies utilized organ specific differences in carcinogenesis to establish the correlations. More recently, we have investigated similar relationships between ...

journal_title：Environmental health perspectives

authors： Swenberg JA,Richardson FC,Boucheron JA,Dyroff MC

更新日期：1985-10-01 00:00:00

abstract：:Often a compound's biological activity is determined by complex relationships between its structural components. Such a relationship often can only be adequately described and exploited by multivariate structure-activity relationship (SAR) studies that can deal with many variables simultaneously. Pattern recognition (...

journal_title：Environmental health perspectives

authors： Stouch TR,Jurs PC

更新日期：1985-09-01 00:00:00