Chromium(VI) reduction by ascorbate: role of reactive intermediates in DNA damage in vitro.

abstract：:Calcium has been implicated as a regulatory factor in many physiological and pathophysiological processes in the renal cell. Under physiological conditions, the cytosolic free calcium concentration is maintained at approximately 100 nM. Most of the releasable cell Ca2+ resides in the nonmitochondrial compartments. In ...

journal_title：Environmental health perspectives

authors： Bonventre JV

更新日期：1990-03-01 00:00:00

abstract：BACKGROUND:Although a long latency period of toxicity after exposure to methylmercury (MeHg) is known to exist in humans, few animal studies have addressed this issue. Substantiation of delayed MeHg toxicity in animals would affect the risk evaluation of MeHg. OBJECTIVES:Our goal in this study was to demonstrate the e...

journal_title：Environmental health perspectives

authors： Yoshida M,Shimizu N,Suzuki M,Watanabe C,Satoh M,Mori K,Yasutake A

更新日期：2008-06-01 00:00:00

abstract：BACKGROUND:Exceptional aging, defined as reaching age 85 years, shows geographic inequalities that may depend on local environmental conditions. Links between particulate pollution-a well-recognized environmental risk factor-and exceptional aging have not been investigated. OBJECTIVES:We conducted a nationwide analysi...

journal_title：Environmental health perspectives

authors： Baccarelli AA,Hales N,Burnett RT,Jerrett M,Mix C,Dockery DW,Pope CA

更新日期：2016-11-01 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：BACKGROUND:Exposure to organophosphate (OP) pesticides is an occupational hazard for farmworkers and affects their children through the take-home pathway. OBJECTIVES:We examined the effectiveness of a randomized community intervention to reduce pesticide exposure among farmworkers and their children. METHODS:We condu...

journal_title：Environmental health perspectives

authors： Thompson B,Coronado GD,Vigoren EM,Griffith WC,Fenske RA,Kissel JC,Shirai JH,Faustman EM

更新日期：2008-05-01 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

authors： Magnien RE

更新日期：2001-10-01 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

authors： Liu Y,Wu F

更新日期：2010-06-01 00:00:00

abstract：BACKGROUND:The toxicity of many xenobiotic compounds is believed to involve oxidative injury to cells. Direct assessment of mechanistic events involved in xenobiotic-induced oxidative stress is not easily achievable. Development of genetically encoded probes designed for monitoring intracellular redox changes represent...

journal_title：Environmental health perspectives

authors： Gibbs-Flournoy EA,Simmons SO,Bromberg PA,Dick TP,Samet JM

更新日期：2013-03-01 00:00:00

abstract：:To examine the effects of dibutyl phthalate (DBP) on gonadal sex differentiation, genetically male tadpoles of Rana rugosa were exposed to dilute solutions of DBP at concentrations of 0.1, 1, or 10 microM during days 19-23 after fertilization, which is the critical period of gonadal sex differentiation in R. rugosa. T...

journal_title：Environmental health perspectives

authors： Ohtani H,Miura I,Ichikawa Y

更新日期：2000-12-01 00:00:00

abstract：BACKGROUND:Recent policies attempting to reduce adverse effects of methylmercury exposure from fish consumption in the United States have targeted reductions in anthropogenic emissions from U.S. sources. OBJECTIVES:To analyze the prospects for future North American and international emissions controls, we assessed the...

journal_title：Environmental health perspectives

authors： Selin NE,Sunderland EM,Knightes CD,Mason RP

更新日期：2010-01-01 00:00:00

abstract：:Exposure of rats to quartz (or various other particles) can lead to the development of lung tumors. At the moment, the mechanisms involved in particle-induced tumor formation are not clarified. However, it is suggested that inflammation, in conjunction with the production of reactive oxygen species (ROS) and an enhanc...

journal_title：Environmental health perspectives

authors： Nehls P,Seiler F,Rehn B,Greferath R,Bruch J

更新日期：1997-09-01 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：: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

authors： Golberg L

更新日期：1979-10-01 00:00:00

abstract：OBJECTIVE:We synthesized the main findings from an international epidemiologic study on the impact of biopersistent organic pollutants (POPs) on human reproductive function. DATA SOURCES AND EXTRACTION:We used a database with interview and biological data from 2,269 women and their spouses, and 18 published core paper...

journal_title：Environmental health perspectives

authors： Bonde JP,Toft G,Rylander L,Rignell-Hydbom A,Giwercman A,Spano M,Manicardi GC,Bizzaro D,Ludwicki JK,Zvyezday V,Bonefeld-Jørgensen EC,Pedersen HS,Jönsson BA,Thulstrup AM,INUENDO.

更新日期：2008-03-01 00:00:00

abstract：:Metals continually rank at the top of the U.S. Environmental Protection Agency's annual list of agents that pose the greatest hazard to the people of the United States. Metals aren't going away, either. They do not biodegrade, and they often concentrate in human and animal cells and tissue. Many metals are known human...

journal_title：Environmental health perspectives

authors： Fisher BE

更新日期：1999-05-01 00:00:00

abstract：:We investigated the metabolic fate of a low dose (25 micro g/kg) of bisphenol A [2,2-bis(4-hydroxy-phenyl)propane] (BPA) injected subcutaneously in CD1 pregnant mice using a tritium-labeled molecule. Analytic methods were developed to allow a radio-chromatographic profiling of BPA residues in excreta and tissues, as w...

journal_title：Environmental health perspectives

authors： Zalko D,Soto AM,Dolo L,Dorio C,Rathahao E,Debrauwer L,Faure R,Cravedi JP

更新日期：2003-03-01 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：:A system suitable for the detection of meiotic aneuploidy is described in which various different origins of the aneuploidy can be distinguished. Aneuploid meiotic products are detected as black disomic spores held in asci containing all the products of a single meiosis. Aneuploidy may result from nondisjunction or fr...

journal_title：Environmental health perspectives

authors： Bond DJ,McMillan L

更新日期：1979-08-01 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

authors： Schecter A,Tiernan T,Schaffner F,Taylor M,Gitlitz G,VanNess GF,Garrett JH,Wagel DJ

更新日期：1985-05-01 00:00:00

abstract：BACKGROUND:Few studies have been conducted to identify risk factors for balance and vestibular dysfunction in general populations, but previous studies have reported evidence of adverse effects of lead and cadmium on balance control in high-risk groups. OBJECTIVE:We evaluated the relationship between blood lead and ca...

journal_title：Environmental health perspectives

authors： Min KB,Lee KJ,Park JB,Min JY

更新日期：2012-03-01 00:00:00

abstract：BACKGROUND:Methylmercury (MeHg) exposure assessments among average fish consumers in the United States may underestimate exposures among U.S. subpopulations with high intakes of regionally specific fish. OBJECTIVES:We examined relationships among fish consumption, estimated mercury (Hg) intake, and measured Hg exposur...

journal_title：Environmental health perspectives

authors： Lincoln RA,Shine JP,Chesney EJ,Vorhees DJ,Grandjean P,Senn DB

更新日期：2011-02-01 00:00:00

abstract：:Organophosphates in increasing amounts and wider varieties of molecular structure are being used to replace the organochlorine pesticides. It has been assumed that the organophosphates as a class would have a minimal chronic toxicity due to rapid hydrolysis and an unfavorable partitioning as regards to lipids. The phy...

journal_title：Environmental health perspectives

authors： Freed VH,Haque R,Schmedding D,Kohnert R

更新日期：1976-02-01 00:00:00

abstract：:All cells contain elaborate systems for the spatial and temporal regulation of the calcium ion, [Ca2+]i, and diverse Ca2+ receptor and biochemical response systems that are regulated by these changes in [Ca2+]i. Toxicants that perturb the mobilization or homeostasis of [Ca2+]i will place the regulation of these proces...

journal_title：Environmental health perspectives

authors： Pounds JG

更新日期：1990-03-01 00:00:00

abstract：:Cap43 is a protein whose RNA is induced under conditions of severe hypoxia or prolonged elevations of intracellular calcium. Additionally, Ni and Co also induce Cap43 because they produce a state of hypoxia in cells. Cap43 protein is expressed at low levels in normal tissues; however, in a variety of cancers, includin...

journal_title：Environmental health perspectives

authors： Cangul H,Salnikow K,Yee H,Zagzag D,Commes T,Costa M

更新日期：2002-10-01 00:00:00

abstract：:Recent studies have linked air pollution to tens of thousands of premature cardiovascular deaths per year. The mechanisms of such associations remain unclear. In this study we examine the association between blood markers of cardiovascular risk and air pollution in a national sample of the U.S. population. Air polluti...

journal_title：Environmental health perspectives

authors： Schwartz J

更新日期：2001-06-01 00:00:00

abstract：:The purpose of this investigation was to determine whether there has been a change in the human blood concentration of perfluorooctanesulfonate (PFOS), perfluorooctanoate (PFOA), and five other fluorochemicals since 1974. Blood samples were collected in 1974 (serum) and 1989 (plasma) from volunteer participants of a l...

journal_title：Environmental health perspectives

authors： Olsen GW,Huang HY,Helzlsouer KJ,Hansen KJ,Butenhoff JL,Mandel JH

更新日期：2005-05-01 00:00:00

abstract：:This subject concerns the complex interrelationship of a genetically determined protein deficiency, enzymes which are inhibited by that protein, environmental challenges such as cigarette smoke and industrial pollutants, and the occurrence of obstructive lung disease (Fig. 1). Unequivocal establishment of an etiologic...

journal_title：Environmental health perspectives

authors： Evans HE,Bognacki N

更新日期：1979-04-01 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：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

authors： Boden LI,Ozonoff D

更新日期：2008-01-01 00:00:00

abstract：:Hemoglobin adducts of the common metabolite of the tobacco-specific nitrosamine (TSNA) 4-hydroxy-1-(3-pyridyl)-1-butanone (HPB) and of 4-aminobiphenyl (4-ABP) were quantified in blood samples from smokers and nonsmokers to test their suitability for biomonitoring tobacco smoke exposure. Additionally, TSNA adducts were...

journal_title：Environmental health perspectives

authors： Schäffler G,Betz C,Richter E

更新日期：1993-03-01 00:00:00