Sequence specificity of mutagenesis in the cI gene of bacteriophage lambda.

abstract：:Adults eating a Western diet digest and absorb ingested food containing approximately 100 g fat, 350 g carbohydrate, and 75 g protein daily. Normal fat absorption requires adequate gastric, pancreatic, liver-biliary, mucosal, and lymphatic function. Carbohydrate and protein absorption is much less dependent on liver-b...

journal_title：Environmental health perspectives

authors： Heizer WD

更新日期：1979-12-01 00:00:00

abstract：BACKGROUND:The etiologies of the male urogenital anomalies hypospadias and cryptorchidism remain unclear. It has been suggested that maternal diet and environmental contaminants may affect the risk of these anomalies via placental or hormonal disturbances. OBJECTIVES:We examined associations between organic food consu...

journal_title：Environmental health perspectives

authors： Brantsæter AL,Torjusen H,Meltzer HM,Papadopoulou E,Hoppin JA,Alexander J,Lieblein G,Roos G,Holten JM,Swartz J,Haugen M

更新日期：2016-03-01 00:00:00

abstract：BACKGROUND:Epidemiologic evidence links tobacco smoke and increased risk for influenza in humans, but the specific host defense pathways involved are unclear. OBJECTIVE:We developed a model to examine influenza-induced innate immune responses in humans and test the hypothesis that exposure to cigarette smoke alters na...

journal_title：Environmental health perspectives

authors： Noah TL,Zhou H,Monaco J,Horvath K,Herbst M,Jaspers I

更新日期：2011-01-01 00:00:00

abstract：:The methylation of specific cytosine residues in DNA has been implicated in regulating gene expression and facilitating functional specialization of cellular phenotypes. Generally, the demethylation of certain CpG sites correlates with transcriptional activation of genes. 5-Azacytidine is an inhibitor of DNA methylati...

journal_title：Environmental health perspectives

authors： Michalowsky LA,Jones PA

更新日期：1989-03-01 00:00:00

abstract：:We evaluated the effect of chronic exposure to dioxin and dioxin-like compounds on the pancreas in female Harlan Sprague-Dawley rats. This investigation represents part of an ongoing National Toxicology Program initiative to determine the relative potency of chronic toxicity and carcinogenicity of polychlorinated diox...

journal_title：Environmental health perspectives

authors： Nyska A,Jokinen MP,Brix AE,Sells DM,Wyde ME,Orzech D,Haseman JK,Flake G,Walker NJ

更新日期：2004-06-01 00:00:00

abstract：:The phenylphosphonothioate insecticides EPN and leptophos, and several analogs, were evaluated with respect to their delayed neurotoxic effects in hens and their environmental behavior in a terrestrial-aquatic model ecosystem. Acute toxicity to insects was highly correlated with sigma sigma of the substituted phenyl g...

journal_title：Environmental health perspectives

authors： Francis BM,Hansen LG,Fukuto TR,Lu PY,Metcalf RL

更新日期：1980-06-01 00:00:00

abstract：:The marriage of toxicology and genomics has created not only opportunities but also novel informatics challenges. As with the larger field of gene expression analysis, toxicogenomics faces the problems of probe annotation and data comparison across different array platforms. Toxicogenomics studies are generally built ...

journal_title：Environmental health perspectives

authors： Mattes WB,Pettit SD,Sansone SA,Bushel PR,Waters MD

更新日期：2004-03-01 00:00:00

abstract：BACKGROUND:Despite evidence of atrazine toxicity in developing organisms from experimental studies, few studies--and fewer epidemiologic investigations--have examined the potential effects of prenatal exposure. OBJECTIVES:We assessed the association between adverse birth outcomes and urinary biomarkers of prenatal atr...

journal_title：Environmental health perspectives

authors： Chevrier C,Limon G,Monfort C,Rouget F,Garlantézec R,Petit C,Durand G,Cordier S

更新日期：2011-07-01 00:00:00

abstract：:We conducted a study on building-related respiratory disease and associated social impact in an office building with water incursions in the northeastern United States. An initial questionnaire had 67% participation (888/1,327). Compared with the U.S. adult population, prevalence ratios were 2.2-2.5 for wheezing, life...

journal_title：Environmental health perspectives

authors： Cox-Ganser JM,White SK,Jones R,Hilsbos K,Storey E,Enright PL,Rao CY,Kreiss K

更新日期：2005-04-01 00:00:00

abstract：:Martineau et al. (2002) reported that St. Lawrence beluga (SLB) have high cancer rates. Unfortunately, errors in their interpretation of the data have led them to overstate the importance of cancer and its links to environmental sources. ...

journal_title：Environmental health perspectives

authors： Hammill MO,Lesage V,Kingsley MC

更新日期：2003-02-01 00:00:00

abstract：:Basophilic hepatic foci, nodules, and trabecular hepatocellular carcinomas, collectively referred to as focal hepatic lesions, were induced by single injections of 5.0 micrograms of diethylnitrosamine (DEN) per gram body weight in 15-day-old C57BL/6J X C3HeB/FeJ F1 (B6C3 F1) mice. Groups of eight experimental and eigh...

journal_title：Environmental health perspectives

authors： Goldfarb S,Pugh TD,Koen H,He YZ

更新日期：1983-04-01 00:00:00

abstract：:Intercellular and extracellular metal concentrations were measured using carbon fiber ultramicrosensors plated with mercury or with polymeric porphyrinic p-type semiconductors. Concentrations of unbound nickel and lead ions were studied within individual BC3H-1 myocytes, and H4-11-C3 rat hepatoma cells. Unbound ions a...

journal_title：Environmental health perspectives

authors： Malinski T,Grunfeld S,Taha Z,Tomboulian P

更新日期：1994-09-01 00:00:00

abstract：:Proto-oncogenes are cellular genes that are expressed during normal growth and developmental processes. Altered versions of normal proto-oncogenes have been implicated in the development of human neoplasia. In this report, we show the detection of activated proto-oncogenes in various spontaneous and chemically induced...

journal_title：Environmental health perspectives

authors： Stowers SJ,Maronpot RR,Reynolds SH,Anderson MW

更新日期：1987-11-01 00:00:00

abstract：:A brief history of the development of the field of aquatic toxicology is provided. In order to provide a perspective on the state-of-the-art in aquatic toxicology relative to classical toxicology, the two fields are compared from the standpoint of the type of scientist practicing each field, the respective objectives ...

journal_title：Environmental health perspectives

authors： Macek KJ

更新日期：1980-02-01 00:00:00

abstract：BACKGROUND:Concern persists over endocrine-disrupting effects of persistent organic pollutants (POPs) on human growth and sexual maturation. Potential effects of toxicant exposures on testosterone levels during puberty are not well characterized. OBJECTIVES:In this study we evaluated the relationship between toxicants...

journal_title：Environmental health perspectives

authors： Schell LM,Gallo MV,Deane GD,Nelder KR,DeCaprio AP,Jacobs A,Akwesasne Task Force on the Environment.

更新日期：2014-03-01 00:00:00

abstract：BACKGROUND:Polybrominated diphenyl ethers (PBDEs), commonly used in building materials, electronics, plastics, polyurethane foams, and textiles, are health hazards found in the environment. OBJECTIVE:In this study we investigated the effects of PBDE-209, a deca-PBDE, on the regulation of growth and apoptosis of breast...

journal_title：Environmental health perspectives

authors： Li ZH,Liu XY,Wang N,Chen JS,Chen YH,Huang JT,Su CH,Xie F,Yu B,Chen DJ

更新日期：2012-04-01 00:00:00

abstract：BACKGROUND:Numerous man-made pollutants activate the aryl hydrocarbon receptor (AhR) and are risk factors for type 2 diabetes. AhR signaling also affects molecular clock genes to influence glucose metabolism. OBJECTIVE:We investigated mechanisms by which AhR activation affects glucose metabolism. METHODS:Glucose tole...

journal_title：Environmental health perspectives

authors： Wang C,Xu CX,Krager SL,Bottum KM,Liao DF,Tischkau SA

更新日期：2011-12-01 00:00:00

abstract：:Epidemiologic studies demonstrate that infection, specifically pneumonia, contributes substantially to the increased morbidity and mortality among elderly individuals following exposure to ambient particulate matter (PM). This laboratory has previously demonstrated that a single inhalation exposure of Streptococcus pn...

journal_title：Environmental health perspectives

authors： Zelikoff JT,Schermerhorn KR,Fang K,Cohen MD,Schlesinger RB

更新日期：2002-10-01 00:00:00

abstract：BACKGROUND:Human controlled-exposure studies have assessed the impact of ambient fine particulate matter on cardiac autonomic function measured by heart rate variability (HRV), but whether these effects are modified by concomitant ozone exposure remains unknown. OBJECTIVE:In this study we assessed the impact of O(3) a...

journal_title：Environmental health perspectives

authors： Fakhri AA,Ilic LM,Wellenius GA,Urch B,Silverman F,Gold DR,Mittleman MA

更新日期：2009-08-01 00:00:00

abstract：BACKGROUND:Organophosphate developmental neurotoxicity involves multiple mechanisms converging on neural cell replication and differentiation. OBJECTIVES:We evaluated mechanisms contributing to the adverse effects of chlorpyrifos (CPF) on DNA synthesis, cell number and size, and cell signaling mediated by adenylyl cyc...

journal_title：Environmental health perspectives

authors： Slotkin TA,MacKillop EA,Ryde IT,Seidler FJ

更新日期：2007-09-01 00:00:00

abstract：BACKGROUND:Ambient air ozone (O3) is a pulmonary irritant that has been associated with respiratory health effects including increased lung inflammation and permeability, airway hyperreactivity, respiratory symptoms, and decreased lung function. Estimation of O3 exposure is a complex task because the pollutant exhibits...

journal_title：Environmental health perspectives

authors： Adam-Poupart A,Brand A,Fournier M,Jerrett M,Smargiassi A

更新日期：2014-09-01 00:00:00

abstract：:Chronic exposure to oxidants is associated with an increased incidence of malignancy; however, the mechanism(s) by which oxidants contribute to carcinogenesis is unknown. Since oncogene activation plays an important role in carcinogenesis, we hypothesized that hydroxyl radical-induced DNA damage might contribute to ca...

journal_title：Environmental health perspectives

authors： Jackson JH

更新日期：1994-12-01 00:00:00

abstract：:To assess the possibility that increases in UV-B exposure on the earth's surface could lead to impaired resistance to several infectious diseases, we studied the effect of UV-B exposure on resistance against Trichinella spiralis. Wistar rats, orally infected with T. spiralis larvae, were exposed to suberythemal doses ...

journal_title：Environmental health perspectives

authors： Goettsch W,Garssen J,Deijns A,de Gruijl FR,van Loveren H

更新日期：1994-03-01 00:00:00

abstract：:We studied peripheral lymphocyte HPRT variant frequency and endogenous nitrosation in human populations exposed to various nitrate levels in their drinking water. Four test populations of women volunteers were compared. Low and medium tap water nitrate exposure groups (14 and 21 subjects) were using public water suppl...

journal_title：Environmental health perspectives

authors： van Maanen JM,Welle IJ,Hageman G,Dallinga JW,Mertens PL,Kleinjans JC

更新日期：1996-05-01 00:00:00

abstract：BACKGROUND:Genetics may partially explain observed heterogeneity in associations between traffic-related air pollution and incident asthma. OBJECTIVE:Our aim was to investigate the impact of gene variants associated with oxidative stress and inflammation on associations between air pollution and incident childhood ast...

journal_title：Environmental health perspectives

authors： MacIntyre EA,Brauer M,Melén E,Bauer CP,Bauer M,Berdel D,Bergström A,Brunekreef B,Chan-Yeung M,Klümper C,Fuertes E,Gehring U,Gref A,Heinrich J,Herbarth O,Kerkhof M,Koppelman GH,Kozyrskyj AL,Pershagen G,Postma DS,Th

更新日期：2014-04-01 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：:We present a model to plan a rational strategy for cancer prevention that has two main functions--assessment and intervention. The assessment function includes three main components: to identify populations at high cancer risk, which may be due to their ethnic group, occupational and environmental exposures, family hi...

journal_title：Environmental health perspectives

authors： Anton-Culver H

更新日期：1995-11-01 00:00:00

abstract：:A case control study of drinking water treatment practices and female cancer mortality was conducted in Wisconsin. Cancer deaths for 1972-1977 from 28 Wisconsin counties and noncancer deaths matched to cancer deaths on age, year of death and county of residence, were compared for characteristics of drinking water supp...

journal_title：Environmental health perspectives

authors： Kanarek MS,Young TB

更新日期：1982-12-01 00:00:00

abstract：:The Sertoli cell is the primary target for FSH action in the mammalian testis. These cells contain the majority of testicular plasma membrane receptors for this hormone. Receptor occupancy is directly correlated with a stimulation of adenylyl cyclase and a decrease in the activity of a cytoplasmic Ca++-sensitive cAMP ...

journal_title：Environmental health perspectives

authors： Tindall DJ,Tash JS,Means AR

更新日期：1981-04-01 00:00:00

abstract：:The lungs may be exposed to potentially toxic metabolites that are either formed in situ or which are present in the circulation. Therefore, pulmonary injury may be a prominent effect of certain classes of chemicals that undergo bioactivation in the body. The specific types of lung cells damaged may depend upon factor...

journal_title：Environmental health perspectives

authors： Boyd MR

更新日期：1984-04-01 00:00:00