Mutagenic synergy between paraoxon and mammalian or plant-activated aromatic amines.

abstract：:Genotoxic effects of therapeutic ultrasound are poorly documented, when compared with the wide use of this physical agent. The aim of this work was to investigate the clastogenic and aneugenic potential of 1 MHz ultrasound, employing intensities (200 and 300 mW/cm2 ) above the cavitational threshold, but in the range ...

journal_title：Environmental and molecular mutagenesis

authors： Udroiu I,Marinaccio J,Bedini A,Giliberti C,Palomba R,Sgura A

更新日期：2018-01-01 00:00:00

abstract：:We evaluated the effects of urban air pollutants on human nasal mucosa over an 8-month period on 102 subjects living in Florence, Tuscany, Italy. A group of subjects living in a city with a lower level of pollution (Sassari, Sardinia, Italy) was also analyzed. Nasal mucosa cells were harvested by brushing, a noninvasi...

journal_title：Environmental and molecular mutagenesis

authors： Pacini S,Giovannelli L,Gulisano M,Peruzzi B,Polli G,Boddi V,Ruggiero M,Bozzo C,Stomeo F,Fenu G,Pezzatini S,Pitozzi V,Dolara P

更新日期：2003-01-01 00:00:00

abstract：:Umu test is one of the in vitro genotoxicity test that has been used widely. It was developed as a high-throughput test system using the 96-well microplate. We have previously constructed new umu test strains for the evaluation of genotoxicity of procarcinogenic metabolic products formed by cytochrome P450 (CYP) enzym...

journal_title：Environmental and molecular mutagenesis

authors： Hori H,Hirata D,Fujii W,Oda Y

更新日期：2017-05-01 00:00:00

abstract：:To protect human and ecosystem health, it is necessary to develop sensitive assays and to identify responsive cells and species (and their life stages). In this study, the relative genotoxicity of two inorganic arsenicals: trivalent sodium arsenite (As(3+)) and pentavalent sodium arsenate (As(5+)), was evaluated in tw...

journal_title：Environmental and molecular mutagenesis

authors： Raisuddin S,Jha AN

更新日期：2004-01-01 00:00:00

abstract：:Previously, we determined that elimination of deoxycytidylate (dCMP) deaminase (DCD1) in the yeast Saccharomyces cerevisiae increases the intracellular dCTP:dTTP ratio and reduces the induction of G x C --> A x T transitions in the SUP4-o gene by ethyl methanesulfonate (EMS) and N-methyl-N'-nitro-N-nitrosoguanidine (M...

journal_title：Environmental and molecular mutagenesis

authors： Kunz BA,Henson ES,Karthikeyan R,Kuschak T,McQueen SA,Scott CA,Xiao W

更新日期：1998-01-01 00:00:00

abstract：:It has been shown previously that carbon black (CB), Printex 90 exposure induces cII and lacZ mutants in the FE1-Muta(TM) Mouse lung epithelial cell line and causes oxidatively damaged DNA and the production of reactive oxygen species (ROS). The purpose of this study was to determine the mutation spectrum in the cII g...

journal_title：Environmental and molecular mutagenesis

authors： Jacobsen NR,White PA,Gingerich J,Møller P,Saber AT,Douglas GR,Vogel U,Wallin H

更新日期：2011-05-01 00:00:00

abstract：:A set of stable nitroxide free radicals that are used as spin labels have been shown to possess metal-independent superoxide dismutase-like activity. Unlike superoxide dismutase (SOD), these compounds are low molecular weight, and readily penetrate into the cell. A representative nitroxide, 4-hydroxy-2,2,6,6-tetrameth...

journal_title：Environmental and molecular mutagenesis

authors： DeGraff WG,Krishna MC,Russo A,Mitchell JB

更新日期：1992-01-01 00:00:00

abstract：:Big Blue Rat-2 cells were evaluated for mutagenesis and mutational spectra (spontaneous and ethylnitrosourea [ENU]-induced). Survival, mutant frequency, population doubling time, and kinetics of mutant increase (to 120 hr) were determined. Exposures were 100, 200, 400, 600, and 1,000 micrograms ENU/ml. The spontaneous...

journal_title：Environmental and molecular mutagenesis

authors： Zimmer DM,Zhang XB,Harbach PR,Mayo JK,Aaron CS

更新日期：1996-01-01 00:00:00

abstract：:The human transcriptome is complex, comprising multiple transcript types, mostly in the form of non-coding RNA (ncRNA). The majority of ncRNA is of the long form (lncRNA, ≥ 200 bp), which plays an important role in gene regulation through multiple mechanisms including epigenetics, chromatin modification, control of tr...

journal_title：Environmental and molecular mutagenesis

authors： McHale CM,Zhang L,Thomas R,Smith MT

更新日期：2013-08-01 00:00:00

abstract：:Two freshwater species of planarians, Girardia schubarti Marcus and G. tigrina Girard, were used for measuring chromosome aberration (CA) induction under laboratory conditions. Three genotoxicants were tested: methyl methanesulfonate (MMS), a direct-acting genotoxicant; cyclophosphamide, a metabolism-dependent genotox...

journal_title：Environmental and molecular mutagenesis

authors： Lau AH,Knakievicz T,Prá D,Erdtmann B

更新日期：2007-07-01 00:00:00

abstract：:The effects of ultrasound on the cytoskeleton, comprising microtubules, had been studied decades ago. Nonetheless, very little attention has been paid to the effects of ultrasound on the mitotic spindle, which is also formed by microtubules. In this study, we treated human fibroblasts and human cancer cells (HeLa and ...

journal_title：Environmental and molecular mutagenesis

authors： Udroiu I,Coluzzi E,Bedini A,Giliberti C,Palomba R,Sgura A

更新日期：2019-08-01 00:00:00

abstract：:Mitochondria are dynamic organelles that are involved in a number of diverse processes. Most often the mitochondrion is associated with energy generation, but other important processes occur in this organelle such as fatty acid synthesis and amino acid metabolism. Although mitochondria encode less than 40 genes, all o...

journal_title：Environmental and molecular mutagenesis

authors： Moore A,Golden A

更新日期：2009-10-01 00:00:00

abstract：:DAS (diallyl sulfide), DADS (diallyl disulfide), and DATS (diallyl trisulfide) are major oil-soluble allyl sulfides (OAS) that represent major garlic constituents. The anticarcinogenic and antimutagenic effects of these substances have been extensively studied during the last decades. Previous reports suggest that ind...

journal_title：Environmental and molecular mutagenesis

authors： Wu XJ,Hu Y,Lamy E,Mersch-Sundermann V

更新日期：2009-04-01 00:00:00

abstract：:Metronidazole (MTZ) is used for the treatment of many infectious diseases, including vaginal infections. While data indicate that MTZ is mutagenic and induces micronuclei in rodents, there is no information on the genotoxicity of MTZ in epithelial vaginal cells or cervical cells. In the present study, we have instille...

journal_title：Environmental and molecular mutagenesis

authors： Ornelas-Aguirre JM,Gómez-Meda BC,Zamora-Perez AL,Ramos-Ibarra ML,Batista-González CM,Zúñiga-González GM

更新日期：2006-06-01 00:00:00

abstract：:Tryptophan is metabolized through serotonin, indole, and kynurenine (KN) pathways. Uptake of an excess amount of tryptophan accompanied with vitamin B6 deficiency may result in the accumulation of higher concentrations of metabolites mainly from the KN pathways in the bladder. These metabolites could interact with nit...

journal_title：Environmental and molecular mutagenesis

authors： Chung KT,Gadupudi GS

更新日期：2011-03-01 00:00:00

abstract：:Investigations have been carried out which have measured the influence of the repair polymerases on the yield of different types of chromosomal aberrations. The studies were mainly concerned with the effect of inhibiting the polymerases on the yield of aberrations. The polymerases fill in single strand regions, and th...

journal_title：Environmental and molecular mutagenesis

authors： Moore RC,Bender MA

更新日期：1993-01-01 00:00:00

abstract：:Increased telomerase expression has been implicated in the pathogenesis of lung cancer and, since the primary cause of lung cancer is smoking, an association between telomerase reactivation and tobacco smoke has been proposed. In this work an investigation has been performed to assess the relationship between tobacco ...

journal_title：Environmental and molecular mutagenesis

authors： Marcon F,Siniscalchi E,Andreoli C,Allione A,Fiorito G,Medda E,Guarrera S,Matullo G,Crebelli R

更新日期：2017-10-01 00:00:00

abstract：:The monoterpene indole alkaloid brachycerine from Psychotria brachyceras has been shown to be induced by UV and to have in vitro antioxidant activity, indicating a possible protective role against the secondary effects of this radiation. In this work, we have studied the antioxidant properties of brachycerine and a cr...

journal_title：Environmental and molecular mutagenesis

authors： do Nascimento NC,Fragoso V,Moura DJ,e Silva AC,Fett-Neto AG,Saffi J

更新日期：2007-12-01 00:00:00

abstract：:2,6-Dicyano-4-nitroaniline and 2-cyano-4-nitroaniline (CNNA; 2-amino-5-nitrobenzonitrile) are potent mutagens in the Ames test, even though unsubstituted nitroanilines (NAs) are no more than weak mutagens. These compounds are putative reduction products of many commercial azo dyes, including Disperse Blue 165, Dispers...

journal_title：Environmental and molecular mutagenesis

authors： Josephy PD,Dhanoa J,Elzawy G,Heney K,Petrie L,Senis C

更新日期：2018-03-01 00:00:00

abstract：:Monohaloacetic acids (monoHAAs) are a major class of drinking water disinfection by-products (DBPs) and are cytotoxic, genotoxic, mutagenic, and teratogenic. We propose a model of toxic action based on monoHAA-mediated inhibition of glyceraldehyde-3-phosphate dehydrogenase (GAPDH) as a target cytosolic enzyme. This mo...

journal_title：Environmental and molecular mutagenesis

authors： Dad A,Jeong CH,Pals JA,Wagner ED,Plewa MJ

更新日期：2013-10-01 00:00:00

abstract：:There is scientific and regulatory interest in using mutation assays in transgenic mice in safety assessments for new chemicals and drugs. Currently these assays are in the process of being validated, and protocols for routine testing are being defined. Some of the issues and results to date with regard to assay valid...

journal_title：Environmental and molecular mutagenesis

authors： Gorelick NJ

更新日期：1995-01-01 00:00:00

abstract：:A rapid and simple procedure for the micronucleus test (MNT) in vitro using Chinese hamster ovary (CHO) cells was established in our laboratory. The assay is intended to quickly screen chromosomal aberrations in vitro within the framework of industrial genotoxicity studies. To test the sensitivity of the assay in the ...

journal_title：Environmental and molecular mutagenesis

authors： Miller BM,Pujadas E,Gocke E

更新日期：1995-01-01 00:00:00

abstract：:DNA adducts of carcinogenic polycyclic aromatic hydrocarbons (PAHs) play a critical role in the etiology of gastrointestinal tract cancers in humans and other species orally exposed to PAHs. Yet, the precise localization of PAH-DNA adducts in the gastrointestinal tract, and the long-term postmortem PAH-DNA adduct stab...

journal_title：Environmental and molecular mutagenesis

authors： Poirier MC,Beland FA,Divi KV,Damon AL,Ali M,Vanlandingham MM,Churchwell MI,Von Tungeln LS,Dwyer JE,Divi RL,Beauchamp G,Martineau D

更新日期：2020-02-01 00:00:00

abstract：:Therapy-related leukemia has been a recognized sequela of cancer treatment for decades with "signature" abnormalities of chromosomes 5, 7, and 11 observed in treated patients. Risk to oncology personnel handling anti-cancer agents has also been documented by non-specific measures of genotoxicity in blood and urine. Us...

journal_title：Environmental and molecular mutagenesis

authors： McDiarmid MA,Rogers B,Oliver MS

更新日期：2014-05-01 00:00:00

abstract：:A collaborative international trial was conducted to evaluate the reproducibility and transferability of an in vivo mutation assay based on the enumeration of CD59-negative rat erythrocytes, a phenotype that is indicative of Pig-a gene mutation. Fourteen laboratories participated in this study, where anti-CD59-PE, SYT...

journal_title：Environmental and molecular mutagenesis

authors： Dertinger SD,Phonethepswath S,Weller P,Nicolette J,Murray J,Sonders P,Vohr HW,Shi J,Krsmanovic L,Gleason C,Custer L,Henwood A,Sweder K,Stankowski LF Jr,Roberts DJ,Giddings A,Kenny J,Lynch AM,Defrain C,Nesslany F,v

更新日期：2011-12-01 00:00:00

abstract：:Although not mutagenic by Ames test, 2,5-dimethylfuran (DMF), a leading biofuel candidate, was found to induce chromosomal damage in cultured murine cells, suggesting that it may be genotoxic. We sought to prioritize the environmental and biological impacts of using DMF as a combustible biofuel. First, we assessed DMF...

journal_title：Environmental and molecular mutagenesis

authors： Phuong J,Kim S,Thomas R,Zhang L

更新日期：2012-07-01 00:00:00

abstract：:A data base consisting of 61 heterocyclic amines formed during food preparation and their des-amino analogs were subjected to structure-activity analysis using the CASE method, a structural activity relational expert system. The program identified the major structural determinants associated with mutagenic activity or...

journal_title：Environmental and molecular mutagenesis

authors： Zhang YP,Klopman G,Rosenkranz HS

更新日期：1993-01-01 00:00:00

abstract：:Bhawalpur is a major cotton-growing area in Pakistan. Cotton picking in Pakistan is carried out by females and as a result of the intensive use of pesticides during the growing season these females are exposed to pesticide residues in the picking season. In the present study, peripheral blood was obtained from 69 cott...

journal_title：Environmental and molecular mutagenesis

authors： Ali T,Bhalli JA,Rana SM,Khan QM

更新日期：2008-06-01 00:00:00

abstract：:Polybrominated diphenyl ethers (PBDEs), which are widely used as flame retardants, are considered persistent organic pollutants. To date, the available toxicological data on PBDEs are limited and were primarily obtained by studying technical blends. The present study was undertaken to investigate the genotoxicity of t...

journal_title：Environmental and molecular mutagenesis

authors： Evandri MG,Mastrangelo S,Costa LG,Bolle P

更新日期：2003-01-01 00:00:00

abstract：:F- is not mutagenic in standard bacterial systems, but produces chromosome aberrations and gene mutations in cultured mammalian cells. Although there is disagreement in the literature concerning the ability of F- to induce chromosome aberrations in cultured human and rodent cells, the weight of the evidence leads to t...

journal_title：Environmental and molecular mutagenesis

authors： Zeiger E,Shelby MD,Witt KL

更新日期：1993-01-01 00:00:00