Toxicity of combustion products from burning polymers: development and evaluation of methods.

abstract：:The spatial and temporal regulation of intracellular free Ca2+ serves as a modulator of signal transduction pathways involved in cell growth and differentiation. Thus, interference of metals with intracellular Ca2+ homeostasis has been considered as a target of toxic action. We used the fluorescence indicator fura-2 t...

journal_title：Environmental health perspectives

authors： Hechtenberg S,Beyersmann D

更新日期：1994-09-01 00:00:00

abstract：:Asbestos and other mineral fibers are carcinogenic to humans and animals but differ from many carcinogens in that they do not induce gene mutations. An understanding of these interesting human carcinogens, therefore, is an important problem in cancer research. Asbestos and other fibers induce predominantly two types o...

journal_title：Environmental health perspectives

authors： Barrett JC,Lamb PW,Wiseman RW

更新日期：1989-05-01 00:00:00

abstract：BACKGROUND:Tremor is one of the most common neurological signs, yet its etiology is poorly understood. Case-control studies suggest an association between blood lead and essential tremor, and that this association is modified by polymorphisms in the δ-aminolevulinic acid dehydrogenase (ALAD) gene. OBJECTIVE:We aimed t...

journal_title：Environmental health perspectives

authors： Ji JS,Power MC,Sparrow D,Spiro A 3rd,Hu H,Louis ED,Weisskopf MG

更新日期：2015-05-01 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

authors： Bierbaum VM,Schmitt RJ,DePuy CH

更新日期：1980-06-01 00:00:00

abstract：:Multiple factors, known and unknown, contribute to human breast cancer. Hereditary, hormonal, and reproductive factors are associated with risk of breast cancer. Environmental agents, including chemical carcinogens, are modifiable risk factors to which over 70% of breast cancers have been attributed. Polymorphisms of ...

journal_title：Environmental health perspectives

authors： DeBruin LS,Josephy PD

更新日期：2002-02-01 00:00:00

abstract：:The accumulation of genetic damage in the forms of activated proto-oncogenes and inactivated tumor-suppressor genes is the driving force in the evolution of a normal cell to a malignant cell. For example, both the activation of ras oncogenes and the inactivation of several suppressor genes, including p53, have been ob...

journal_title：Environmental health perspectives

authors： Anderson MW,Reynolds SH,You M,Maronpot RM

更新日期：1992-11-01 00:00:00

abstract：:Rates of developmental and respiratory diseases are disproportionately high in underserved, minority populations such as those in New York City's Washington Heights, Harlem, and the South Bronx. Blacks and Latinos in these neighborhoods represent high risk groups for asthma, adverse birth outcomes, impaired developmen...

journal_title：Environmental health perspectives

authors： Perera FP,Illman SM,Kinney PL,Whyatt RM,Kelvin EA,Shepard P,Evans D,Fullilove M,Ford J,Miller RL,Meyer IH,Rauh VA

更新日期：2002-02-01 00:00:00

abstract：:Isoflavonoids and related compounds such as coumestrol have classically been categorized as phytoestrogens because these environmentally derived substances bind to the estrogen receptor (ER) and increase uterine wet weight in immature rats and mice. Assessment of the binding affinities of isoflavonoids for ER and subs...

journal_title：Environmental health perspectives

authors： Markaverich BM,Webb B,Densmore CL,Gregory RR

更新日期：1995-06-01 00:00:00

abstract：:Recent studies show that young children can be exposed to pesticides during normal oral exploration of their environment and their level of dermal contact with floors and other surfaces. Children living in agricultural areas may be exposed to higher pesticide levels than other children because of pesticides tracked in...

journal_title：Environmental health perspectives

authors： Eskenazi B,Bradman A,Castorina R

更新日期：1999-06-01 00:00:00

abstract：:We extended our previous analyses of term low birth weight (LBW) and preterm birth to 1994-2000, a period of declining air pollution levels in the South Coast Air Basin. We speculated that the effects we observed previously for carbon monoxide, particulate matter < 10 microm in aerodynamic diameter (PM10), and traffic...

journal_title：Environmental health perspectives

authors： Wilhelm M,Ritz B

更新日期：2005-09-01 00:00:00

abstract：:Lead-induced nephropathy produces both tubular and interstitial manifestations of cell injury, but the pathophysiology of these lesions is not completely understood. Delineation of the molecular factors underlying renal handling of lead is one of central importance in understanding the mechanisms of renal cell injury ...

journal_title：Environmental health perspectives

authors： Fowler BA,DuVal G

更新日期：1991-02-01 00:00:00

abstract：BACKGROUND:The National Institutes of Health's Environmental influences on Child Health Outcomes (ECHO) initiative aims to understand the impact of environmental factors on childhood disease. Over 40,000 chemicals are approved for commercial use. The challenge is to prioritize chemicals for biomonitoring that may prese...

journal_title：Environmental health perspectives

authors： Pellizzari ED,Woodruff TJ,Boyles RR,Kannan K,Beamer PI,Buckley JP,Wang A,Zhu Y,Bennett DH,(Environmental influences on Child Health Outcomes).

更新日期：2019-12-01 00:00:00

abstract：:Studies on the fate of 14C-labeled vinyl chloride (VC) following oral administration and inhalation exposure in rats demonstrated that the disposition of VC in the body is a function of the dose. More importantly, from the data available, it appears that a correlation exists between doses of VC which cause tumors and ...

journal_title：Environmental health perspectives

authors： Watanabe PG,Gehring PJ

更新日期：1976-10-01 00:00:00

abstract：BACKGROUND:The impact of prenatal lead exposure on neurodevelopment remains unclear in terms of consistency, the trimester of greatest vulnerability, and the best method for estimating fetal lead exposure. OBJECTIVE:We studied prenatal lead exposure's impact on neurodevelopment using repeated measures of fetal dose as...

journal_title：Environmental health perspectives

authors： Hu H,Téllez-Rojo MM,Bellinger D,Smith D,Ettinger AS,Lamadrid-Figueroa H,Schwartz J,Schnaas L,Mercado-García A,Hernández-Avila M

更新日期：2006-11-01 00:00:00

abstract：:Descriptions of endocrine disruption have largely been associated with wildlife and driven by observations documenting estrogenic, androgenic, antiandrogenic, and antithyroid actions. These actions, in response to exposure to ecologically relevant concentrations of various environmental contaminants, have now been est...

journal_title：Environmental health perspectives

authors： Guillette LJ Jr

更新日期：2006-04-01 00:00:00

abstract：:Scientists at Pacific Northwest National Laboratory in Richland, Washington, have developed a unique imaging system capable of focusing on a single living cell within an organism. This new technology will be used in what the multidisciplinary team has termed a "cellular observatory" to study the effect of environmenta...

journal_title：Environmental health perspectives

authors： Medlin J

更新日期：1999-11-01 00:00:00

abstract：:Minority populations face a wide variety of economic, institutional, and cultural barriers to health care. These barriers and low levels of education and income pose significant challenges for health professionals in developing cancer research and prevention-control strategies. It is suggested that specific segments o...

journal_title：Environmental health perspectives

authors： Ramirez AG,McAlister A,Gallion KJ,Villarreal R

更新日期：1995-11-01 00:00:00

abstract：:New technologies are providing innovative ways to reduce sound levels in many areas. Aircraft engineers are finding ways to reduce the noise produced by jet engines, while road builders are using rubber-enhanced pavement to quiet highway noise. Indoor acoustics are benefiting from materials that transform sound waves ...

journal_title：Environmental health perspectives

authors： Manuel J

更新日期：2005-01-01 00:00:00

abstract：:A review and summary is given of analytical, biochemical, and immunological studies made following an immunodiagnostic investigation which revealed significant decreases in the numbers, and changes in the functional integrity, of both T-and B-lymphocytes in a group of Michigan dairy farmers exposed to polybrominated b...

journal_title：Environmental health perspectives

authors： Roboz J,Greaves J,Bekesi JG

更新日期：1985-05-01 00:00:00

abstract：:Exposure to aflatoxin B1 (AFB1), an important cofactor in the etiology of hepatocellular carcinoma in Taiwan, is influenced by dietary and other factors. The present study examined the intraindividual variability in AFB1-albumin adducts, the most reliable long-term biomarker of AFB1 exposure, and whether the baseline ...

journal_title：Environmental health perspectives

authors： Ahsan H,Wang LY,Chen CJ,Tsai WY,Santella RM

更新日期：2001-08-01 00:00:00

abstract：:The National Urban Air Toxics Research Center (NUATRC) hosted its first scientific workshop in 1994 that focused on possible relationships between air toxics and asthma. From that meeting came recommendations for future research including a need for more complete individual personal exposure assessments so that determ...

journal_title：Environmental health perspectives

authors： Larsen GL,Beskid C,Shirnamé-Moré L

更新日期：2002-08-01 00:00:00

abstract：:The binary, ternary, quaternary, and quintary interactions of a five-component mixture of carcinogenic environmental polycyclic aromatic hydrocarbons (PAHs) using response surface analyses are described. Initially, lung tumor dose-response curves in strain A/J mice for each of the individual PAHs benzo[a]pyrene (B[a]P...

journal_title：Environmental health perspectives

authors： Nesnow S,Mass MJ,Ross JA,Galati AJ,Lambert GR,Gennings C,Carter WH Jr,Stoner GD

更新日期：1998-12-01 00:00:00

abstract：:A literature review of experimental and human exposure studies of skin permeation and cutaneous hypersensitivity reactions evoked by chromium was carried out to provide a basis for making a risk assessment of chromium as a soil contaminant. In vitro and in vivo studies demonstrated that 1 to 4% of the applied dose of ...

journal_title：Environmental health perspectives

authors： Bagdon RE,Hazen RE

更新日期：1991-05-01 00:00:00

abstract：BACKGROUND:Previous studies indicate that the design of streets and sidewalks can influence physical activity among residents. Park features also influence park use and park-based physical activity. Although individuals can walk on streets and sidewalks, walking loops in parks offer a setting to walk in nature and to a...

journal_title：Environmental health perspectives

authors： Cohen DA,Han B,Evenson KR,Nagel C,McKenzie TL,Marsh T,Williamson S,Harnik P

更新日期：2017-02-01 00:00:00

abstract：:Carcinogenic nickel compounds are usually found to be weak mutagens; therefore these compounds may not exert their carcinogenic activity through conventional genotoxic mechanisms. On the other hand, the activities of many nickel compounds have not been adequately investigated. We evaluated the genotoxic activities of ...

journal_title：Environmental health perspectives

authors： Au WW,Heo MY,Chiewchanwit T

更新日期：1994-11-01 00:00:00

abstract：:A simplified mathematical model which made use of Fick's laws of diffusion written in spherical coordinates was developed to describe the rate of diffusion of residual monomers from polymer resins. The properties of the monomer-polymer system which influenced the amount of monomer remaining in the polymer as a functio...

journal_title：Environmental health perspectives

authors： Piver WT

更新日期：1976-10-01 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

authors： Béranger R,Garlantézec R,Le Maner-Idrissi G,Lacroix A,Rouget F,Trowbridge J,Warembourg C,Monfort C,Le Gléau F,Jourdin M,Multigner L,Cordier S,Chevrier C

更新日期：2017-04-01 00:00:00

abstract：:Fish and shellfish caught in polluted waters contain potentially dangerous amounts of toxic and carcinogenic chemicals. Public concern was heightened when a large percentage of winter flounder taken from Boston Harbor was found to have visible cancer of the liver; winter flounder outside the estuary area had no liver ...

journal_title：Environmental health perspectives

authors： Huff J,Bucher J,Yang R

更新日期：1991-01-01 00:00:00

abstract：:In 1996 the U.S. Congress charged the U.S. Environmental Protection Agency to develop a screening program to test chemicals for their possible estrogenic and other endocrine effects. Shortly thereafter, the Chemical Guidelines Program of the Organisation for Economic Co-operation and Development's (OECD) Environmental...

journal_title：Environmental health perspectives

authors： Colborn T

更新日期：2002-06-01 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

authors： Jacob ST,Majumder S,Ghoshal K

更新日期：2002-10-01 00:00:00