O6-methylguanine-DNA methyltransferase activities from exponentially growing human T lymphocytes: similar activities in controls and Alzheimer's disease patients.

abstract：:In order to establish the capacity of Mytilus spp. to form genotoxin-DNA adducts, a series of in vitro and in vivo studies were conducted in which tissue samples and animals were exposed to five model genotoxins. Following the in vitro characterization of the major adducts induced by the compounds, a series of in vivo...

journal_title：Mutagenesis

authors： Harvey JS,Parry JM

更新日期：1997-05-01 00:00:00

abstract：:The presence of centromeric DNA was studied in micronuclei isolated from the blood of male ddY mice after five weekly intraperitoneal injections of mitomycin C (MMC), 1-beta-D-arabinofuranosylcytosine (Ara-C), colchicine (COL) or vinblastine sulfate (VBL). In agreement with our earlier findings, about half of the micr...

journal_title：Mutagenesis

authors： Mäki-Paakkanen J,Hayashi M,Suzuki T,Tanabe H,Honma M,Sofuni T

更新日期：1995-11-01 00:00:00

abstract：:We examined the clastogenic and cell-transforming potential of ultrafine particulate matter fraction PM0.056 of urban ambient aerosol using mammalian cells. PM1.0, PM0.56 and PM0.056 fractions were sampled from roadside atmosphere of an urban area using the cascade impactor MOUDI-NR-110. The potential to induce cytoto...

journal_title：Mutagenesis

authors： Verma MK,Poojan S,Sultana S,Kumar S

更新日期：2014-09-01 00:00:00

abstract：:Detailed dose-response data for two reference aneugens, vincristine and nocodazole, have been derived for the mouse bone marrow micronucleus assay. Positive data have also been described for six other micronucleus-inducing agents: cyclophosphamide; aniline; urethane; 1,2-dimethylhydrazine; 7,12-dimethylbenzanthracene ...

journal_title：Mutagenesis

authors： Tinwell H,Ashby J

更新日期：1991-05-01 00:00:00

abstract：:The spectrum of mutations induced by cobalt(II) chloride (CoCl2) was examined using plasmid pUB3 DNA, which was propagated after transfection into Escherichia coli SY1032/pKY241 host cells. The vector plasmid carried an E.coli supF suppressor tRNA gene as a target for mutations. After CoCl2 treatment, 64 independent n...

journal_title：Mutagenesis

authors： Ogawa HI,Ohyama Y,Ohsumi Y,Kakimoto K,Kato Y,Shirai Y,Nunoshiba T,Yamamoto K

更新日期：1999-03-01 00:00:00

abstract：:Male infertility is a relevant social and medical problem. Male infertility is mostly caused by genetic disorders. The purpose of the study was to analyze the correlation of chromosome aberrations, as well as DNA fragmentation and various manifestations of spermatogenesis disorder. Sperm samples of 58 males with infer...

journal_title：Mutagenesis

authors： Alchinbayev MK,Aralbayeva AN,Tuleyeva LN,Duysenbayeva SM,Makazhanov MA

更新日期：2016-09-01 00:00:00

abstract：:Mutation induction by UV irradiation was studied in a retroviral vector integrated in one copy per cell at various chromosomal positions. As a mutational target, hamster hprt cDNA was present on the retroviral vector. To minimize the influence of repair we used repair-deficient hamster cells, V-H1 and UV5, as a recipi...

journal_title：Mutagenesis

authors： Tasseron-de Jong JG,den Dulk H,Lichtenauer-Kaligis EG,Kroone RC,Giphart-Gassler M,van de Putte P

更新日期：1993-09-01 00:00:00

abstract：:We have shown previously that UVC irradiation of benzo[a]pyrene diol epoxide (BPDE)-adducted DNA (BPDE/UVC) induces an increase in mutation frequency in the supF gene greater than the calculated additive value derived from either treatment alone, with a greater absolute increase in the level of BPDE signature transver...

journal_title：Mutagenesis

authors： McLuckie KI,Gaskell M,Farmer PB,Martin EA,Jones GD,Routledge MN

更新日期：2004-03-01 00:00:00

abstract：:Urine and serum samples of rats bearing three different experimental tumours (hepatocellular carcinoma, myelomonocytic leukemia and mesoblastic nephroma) were investigated for mutagenicity with the Ames Salmonella test. Enhancement of mutagenic activity in TA98 and TA100 was observed only in the case of urine samples ...

journal_title：Mutagenesis

authors： Varga C,Pocsai Z,Kertai P

更新日期：1995-01-01 00:00:00

abstract：:Carbon nanotubes (CNTs) are fibrous carbon-based nanomaterials with a potential to cause carcinogenesis in humans. Alterations in DNA methylation on cytosine-phosphate-guanidine (CpG) sites are potential markers of exposure-induced carcinogenesis. This study examined cytotoxicity, genotoxicity and DNA methylation alte...

journal_title：Mutagenesis

authors： Öner D,Moisse M,Ghosh M,Duca RC,Poels K,Luyts K,Putzeys E,Cokic SM,Van Landuyt K,Vanoirbeek J,Lambrechts D,Godderis L,Hoet PH

更新日期：2017-01-01 00:00:00

abstract：:BRAF alterations represent a novel indicator of the progression and aggressiveness of thyroid carcinogenesis. So, the main aim of the study was to elucidate the involvement of BRAF gene mutations and its expression in Kashmiri (North India) patients and investigate their association with clinico-pathological character...

journal_title：Mutagenesis

authors： Khan MS,Pandith AA,Azad N,Hussain MU,Masoodi SR,Wani KA,Andrabi KI,Mudassar S

更新日期：2014-03-01 00:00:00

abstract：:The induction of aneuploidy in cultured mammalian cells has been studied using two chemical agents, diethylstilboestrol dipropionate and Colcemid, which act on the mitotic spindle, in order to investigate different methods of scoring and statistical analysis. Two cell lines, one human and the other Chinese hamster, we...

journal_title：Mutagenesis

authors： Danford N,Balfe P

更新日期：1987-09-01 00:00:00

abstract：:Barrett's oesophagus (BO) carries an increased risk of progression to oesophageal adenocarcinoma. Chromoendoscopy with methylene blue (MB) can be used to facilitate identification of BO and target areas for biopsy. If photoexcited, MB can generate reactive oxygen species and genotoxic photodegradation products leading...

journal_title：Mutagenesis

authors： Sturmey RG,Wild CP,Hardie LJ

更新日期：2009-05-01 00:00:00

abstract：:Over the past several years, we have been evaluating the mutagenicity and clastogenicity of compounds capable of Michael-type reactions. These compounds, including acrylamide, several acrylate and methacrylate esters, vinyl sulfones, and phorone, have been evaluated using TK+/- -3.7.2C mouse lymphoma cells. Mutagenic ...

journal_title：Mutagenesis

authors： Dearfield KL,Harrington-Brock K,Doerr CL,Rabinowitz JR,Moore MM

更新日期：1991-11-01 00:00:00

abstract：:Potential toxicological interactions of 4-(N-methyl-N-nitrosamino)-1-(3-pyridyl)-1-butanone (NNK) and/or dibutyl phthalate (DBP) with ozone were investigated. Male and female B6C3F1 mice were exposed to ozone (0.5 p.p.m.), NNK (1.0 mg/kg), DBP (5000 p.p.m.) and different combinations of these toxicants 6 h/day for 16,...

journal_title：Mutagenesis

authors： Kim MY,Kim YC,Cho MH

更新日期：2002-07-01 00:00:00

abstract：:An established human hepatoma cell strain (Hep G2) was used in micronuclei (MN) and sister chromatid exchange (SCE) assays to evaluate the clastogenic potential of several indirectly-acting mutagenic carcinogens. Benzo[a]pyrene, cyclophosphamide, dimethyl nitrosamine, hexamethylphosphoramide, pyrene and safrole were s...

journal_title：Mutagenesis

authors： Natarajan AT,Darroudi F

更新日期：1991-09-01 00:00:00

abstract：:The use of a white-ivory (wi) strain of Drosophila melanogaster carrying four copies of this allele, (wi)4, has proved to be useful in detecting somatic mutation in genotoxicity testing. Nevertheless, until now very little information exists about the nature of the genetic effects detected in such a strain. This work ...

journal_title：Mutagenesis

authors： Suárez S,Cabré O,Velázquez A,Marcos R,Xamena N

更新日期：1999-03-01 00:00:00

abstract：:Blepharophimosis-ptosis-epicanthus inversus syndrome (BPES) is an autosomal dominant disorder characterized by blepharophimosis, ptosis and epicanthus inversus. Based on the presence and absence of premature ovarian failure, two clinical types have been distinguished. Both types of BPES have been mapped to chromosome ...

journal_title：Mutagenesis

authors： Tang S,Wang X,Lin L,Sun Y,Wang Y,Yu H

更新日期：2006-01-01 00:00:00

abstract：:The genotoxic effects of benzene in lung cells of mice exposed to single acute doses by inhalation have been estimated by cytogenetic analysis of micronuclei in primary cultures of lung fibroblasts. Mice were nose-only exposed to 1000 p.p.m. for 30 or 60 min or to 3500 p.p.m. for 30 min and sacrificed 24 h after the e...

journal_title：Mutagenesis

authors： Ranaldi R,Bassani B,Villani P,Lombardi CC,Tanzarella C,Pacchierotti F

更新日期：1998-09-01 00:00:00

abstract：:Sanfetrinem cilexetil, a hexetil ester of a Trinem antibiotic, does not induce micronuclei in rat bone marrow cells or induce DNA repair synthesis in rat hepatocytes following oral dosing. However, in vitro chromosome damage and mutations are induced in mammalian cells lacking carboxylesterase activity (human lymphocy...

journal_title：Mutagenesis

authors： Oliver J,Naidoo A,Vandin L,Pugnaghi F,Gatehouse D,Comelli R

更新日期：2000-01-01 00:00:00

abstract：:Many chemical carcinogens require metabolic activation to form genotoxic compounds in human. Standard in vitro genotoxicity assays performed with activation systems, such as rat liver S9, are recognised to lead to a high number of false positives. The aim of this study was to evaluate the suitability of differentiated...

journal_title：Mutagenesis

authors： Le Hegarat L,Dumont J,Josse R,Huet S,Lanceleur R,Mourot A,Poul JM,Guguen-Guillouzo C,Guillouzo A,Fessard V

更新日期：2010-11-01 00:00:00

abstract：:Radiation-induced exchange aberrations are thought to arise as a consequence of misrejoining of free ends of DNA double strand breaks (dsbs). In quiescent mammalian cells this process of misrejoining is prevalently taken up by the non-homologous end joining (NHEJ) process. In order to investigate the role of glutathio...

journal_title：Mutagenesis

authors： Dutta A,Chakraborty A,Saha A,Ray S,Chatterjee A

更新日期：2005-09-01 00:00:00

abstract：:The ability of topoisomerase II inhibitor, teniposide, to induce aneuploidy and meiotic delay in somatic and germinal cells of male mice was investigated by fluorescence in situ hybridisation (FISH) assay using labelled DNA probes and 5-bromo-2'-deoxyuridine (BrdU) incorporation assay, respectively. Colchicine and mit...

journal_title：Mutagenesis

authors： Attia SM

更新日期：2012-01-01 00:00:00

abstract：:Implementation of the seventh amendment to the EU Cosmetics Directive has driven much research into suitable in vitro alternative assays to support satisfactory risk assessments. One such assay is the reconstructed skin micronucleus (RSMN) assay. First reported in 2006, further development occurred and a standard prot...

journal_title：Mutagenesis

authors： Kidd D,Phillips S,Chirom T,Mason N,Smith R,Saul J,Whitwell J,Clements J

更新日期：2019-12-03 00:00:00

abstract：:The old herbal drug aristolochic acid (AA), derived from Aristolochia spp., has been associated with the development of a novel nephropathy, designated aristolochic acid nephropathy (AAN), and urothelial cancer in AAN patients. There is clear evidence that the major components of the plant extract AA, aristolochic aci...

journal_title：Mutagenesis

authors： Arlt VM,Stiborova M,Schmeiser HH

更新日期：2002-07-01 00:00:00

abstract：:We carried out statistical analysis of the frequency of loss of heterozygosity (LOH) at 10 microsatellite markers on chromosome 9. In 44 microdissected sporadic primary melanomas a comparison of LOH frequency data with other patient data, like age at diagnosis and tumour thickness, showed an interesting correlation be...

journal_title：Mutagenesis

authors： Smeds J,Kumar R,Rozell BL,Hemminki K

更新日期：2000-05-01 00:00:00

abstract：:Coal miners are exposed to coal dust, containing mineral particles, inorganic compounds and polycyclic aromatic hydrocarbons, and to ionizing radiation. These factors can induce oxidative stress and promote inflammation that leads to DNA damage. The aim of this investigation is to analyse the degree of DNA damage in m...

journal_title：Mutagenesis

authors： Sinitsky MY,Minina VI,Gafarov NI,Asanov MA,Larionov AV,Ponasenko AV,Volobaev VP,Druzhinin VG

更新日期：2016-11-01 00:00:00

abstract：:Cyclooxygenase 2 (Cox-2, a rate-limiting enzyme in the conversion of arachidonic acid to prostanoids) has been implicated in several physiological and pathological processes, and it has been reported that polymorphisms in the regulatory region of Cox-2 might influence its expression, contributing to the interindividua...

journal_title：Mutagenesis

authors： Tang Z,Nie ZL,Pan Y,Zhang L,Gao L,Zhang Q,Qu L,He B,Song G,Zhang Y,Shukui Wang

更新日期：2011-11-01 00:00:00

abstract：:Primary liver fibroblasts were applied in a cytokinesis-block micronucleus assay in combination with fluorescence in situ hybridization (FISH) using two protocols. In protocol A (Prot. A), cytochalasin B (Cyt B) was added at the end of the treatment time directly to the medium containing the standard compounds, wherea...

journal_title：Mutagenesis

authors： Nesti C,Trippi F,Scarpato R,Migliore L,Turchi G

更新日期：2000-03-01 00:00:00

abstract：:Comparative investigations of sister-chromatid exchange (SCE) and micronucleus induction in the bone marrow of rats, mice and Chinese hamsters with the cytostatic alkylating mutagen cyclophosphamide (CP) revealed remarkable species differences in their mutagenic responses. With both test systems the sensitivities of t...

journal_title：Mutagenesis

authors： Madle E,Korte A,Beek B

更新日期：1986-11-01 00:00:00